Iranian Journal of Radiology Iranian Journal of Radiology Iran J Radiol http://www.Iranjradiol.com 1735-1065 2008-2711 10.5812/iranjradiol en jalali 2017 6 26 gregorian 2017 6 26 12 1
en 10.5812/iranjradiol.7450 Congenital External Carotid-External Jugular Arteriovenous Fistula: Diagnosis with Contrast-Enhanced Computed Tomography Congenital External Carotid-External Jugular Arteriovenous Fistula: Diagnosis with Contrast-Enhanced Computed Tomography VASCULAR & INTERVENTIONAL RADIOLOGY case-report case-report

The possibility of abnormal AVF was considered and it was confirmed on contrast-enhanced computed tomography (CT), inferring that this modality is not only fast and non-invasive, but also accurate in detecting vascular abnormalities.

Herein, we report a 42-year-old woman with congenital AVF between the external carotid artery and external jugular vein, presenting with palpitation and dyspnea. The patient was suffering from mitral and tricuspid regurgitation. On physical examination, a thrill on the left side of the neck and an audible bruit over the left mandibular angle were detected.

Arteriovenous fistula (AVF) between the external carotid artery and external jugular vein is extremely rare, with only few cases reported in the literature so far. Most of these AVFs have been either iatrogenic or secondary to previous trauma.

The possibility of abnormal AVF was considered and it was confirmed on contrast-enhanced computed tomography (CT), inferring that this modality is not only fast and non-invasive, but also accurate in detecting vascular abnormalities.

Herein, we report a 42-year-old woman with congenital AVF between the external carotid artery and external jugular vein, presenting with palpitation and dyspnea. The patient was suffering from mitral and tricuspid regurgitation. On physical examination, a thrill on the left side of the neck and an audible bruit over the left mandibular angle were detected.

Arteriovenous fistula (AVF) between the external carotid artery and external jugular vein is extremely rare, with only few cases reported in the literature so far. Most of these AVFs have been either iatrogenic or secondary to previous trauma.

Arteriovenous Fistula;Carotid Arteries;Tomography, X-Ray Computed Arteriovenous Fistula;Carotid Arteries;Tomography, X-Ray Computed http://www.Iranjradiol.com/index.php?page=article&article_id=7450 Taraneh Faghihi Langroudi Taraneh Faghihi Langroudi Department of Radiology, Modarres Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran Department of Radiology, Modarres Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran Abbas Arjmand Shabestari Abbas Arjmand Shabestari Department of Radiology, Modarres Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran Department of Radiology, Modarres Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran Ramin Pourghorban Ramin Pourghorban Department of Radiology, Modarres Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Department of Radiology, Modarres Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran. Tel: +98-9113410570, Fax: +98-2122719017 Department of Radiology, Modarres Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Department of Radiology, Modarres Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran. Tel: +98-9113410570, Fax: +98-2122719017 Ensi Khalili Pouya Ensi Khalili Pouya Department of Radiology, Modarres Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran Department of Radiology, Modarres Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
en 10.5812/iranjradiol.11204 Metabolic Pattern of Asymptomatic Hip-Prosthesis by 18F-FDG-Positron-Emission-Tomography Metabolic Pattern of Asymptomatic Hip-Prosthesis by 18F-FDG-Positron-Emission-Tomography research-article research-article Conclusion

Of the asymptomatic patients investigated, 58% showed focal enhanced periprosthetic glucose metabolism. This finding should be taken into consideration as a more probable unspecific metabolic pattern for correct interpretation of 18F-FDG-PET studies in patients with suspected septic loosening of the hip prosthesis.

Results

Fourteen hip prostheses in 12 patients were visually analyzed. Seven out of 14 prostheses among 12 patients showed focal periprosthetic enhanced metabolism, two of which showed two sites of enhanced uptake; whereas, the remaining five prostheses showed singular hypermetabolic areas within the periprosthetic site. The remaining seven prostheses in the other five patients showed no periprosthetic-enhanced uptake.

Patients and Methods

Twelve patients (6 males, 6 females); mean age 73 ± 7 (range 58 - 91) years were prospectively enrolled in the study. The patients were admitted to our department for oncological referral with implanted hip prostheses. All patients explained no symptoms with regard to their implanted prosthesis. The attenuation corrected images were used for analysis.

Objectives

In order to overcome this drawback, we aimed to find out the physiological metabolic functional pattern in asymptomatic patients with implanted hip prosthesis

Background

Joint replacement is a procedure with a major impact on the quality of life of patients with joint degenerative disease or traumatic injuries. However, some patients develop symptoms after the intervention caused by mechanical loosening or infection. Metabolic imaging by 18F-FDG-PET investigated in these patients isoften hampered by low specificity for diagnosis of possible septic vs. mechanical loosening. The reason for this shortcoming is to our opinion the unawareness of physiological remodeling processes that could be seen in asymptomatic patients.

Conclusion

Of the asymptomatic patients investigated, 58% showed focal enhanced periprosthetic glucose metabolism. This finding should be taken into consideration as a more probable unspecific metabolic pattern for correct interpretation of 18F-FDG-PET studies in patients with suspected septic loosening of the hip prosthesis.

Results

Fourteen hip prostheses in 12 patients were visually analyzed. Seven out of 14 prostheses among 12 patients showed focal periprosthetic enhanced metabolism, two of which showed two sites of enhanced uptake; whereas, the remaining five prostheses showed singular hypermetabolic areas within the periprosthetic site. The remaining seven prostheses in the other five patients showed no periprosthetic-enhanced uptake.

Patients and Methods

Twelve patients (6 males, 6 females); mean age 73 ± 7 (range 58 - 91) years were prospectively enrolled in the study. The patients were admitted to our department for oncological referral with implanted hip prostheses. All patients explained no symptoms with regard to their implanted prosthesis. The attenuation corrected images were used for analysis.

Objectives

In order to overcome this drawback, we aimed to find out the physiological metabolic functional pattern in asymptomatic patients with implanted hip prosthesis

Background

Joint replacement is a procedure with a major impact on the quality of life of patients with joint degenerative disease or traumatic injuries. However, some patients develop symptoms after the intervention caused by mechanical loosening or infection. Metabolic imaging by 18F-FDG-PET investigated in these patients isoften hampered by low specificity for diagnosis of possible septic vs. mechanical loosening. The reason for this shortcoming is to our opinion the unawareness of physiological remodeling processes that could be seen in asymptomatic patients.

18F- FDG;PET;Arthroplasty;Prosthesis Loosening;Prosthesis Infection 18F- FDG;PET;Arthroplasty;Prosthesis Loosening;Prosthesis Infection http://www.Iranjradiol.com/index.php?page=article&article_id=11204 Nermina Beslic Nermina Beslic Department of Nuclear Medicine, Clinical Center University of Sarajevo, Bolnicka, Sarajevo, Bosnia and Herzegovina Department of Nuclear Medicine, Clinical Center University of Sarajevo, Bolnicka, Sarajevo, Bosnia and Herzegovina Daniel Heber Daniel Heber Department of Radiology, Medical University of Graz, Austria Department of Radiology, Medical University of Graz, Austria Rainer Walter Lipp Rainer Walter Lipp Department of Radiology, Medical University of Graz, Austria Department of Radiology, Medical University of Graz, Austria Charlotte Sonneck-Koenne Charlotte Sonneck-Koenne Department of Nuclear Medicine with PET-Center, Wilhelminenspital, Montleart straße 37, 1160 Vienna, Austria; Department of Nuclear Medicine with PET-Center, Wilhelminenspital, Montleart straße 37, 1160 Vienna, Austria. Tel: +43-1491503608, Fax: +43-1491503609 Department of Nuclear Medicine with PET-Center, Wilhelminenspital, Montleart straße 37, 1160 Vienna, Austria; Department of Nuclear Medicine with PET-Center, Wilhelminenspital, Montleart straße 37, 1160 Vienna, Austria. Tel: +43-1491503608, Fax: +43-1491503609 Peter Knoll Peter Knoll Department of Nuclear Medicine with PET-Center, Wilhelminenspital, Montleart straße 37, 1160 Vienna, Austria Department of Nuclear Medicine with PET-Center, Wilhelminenspital, Montleart straße 37, 1160 Vienna, Austria Siroos Mirzaei Siroos Mirzaei Department of Nuclear Medicine with PET-Center, Wilhelminenspital, Montleart straße 37, 1160 Vienna, Austria Department of Nuclear Medicine with PET-Center, Wilhelminenspital, Montleart straße 37, 1160 Vienna, Austria
en 10.5812/iranjradiol.6921 Intraosseous Pleomorphic Adenoma of the Mandible Intraosseous Pleomorphic Adenoma of the Mandible HEAD & NECK IMAGING letter letter Salivary Gland;Orthopentogram;Pleomorphic Adenoma;Mandible Salivary Gland;Orthopentogram;Pleomorphic Adenoma;Mandible http://www.Iranjradiol.com/index.php?page=article&article_id=6921 Leila Aghaghazvini Leila Aghaghazvini Department of Radiology, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran; Advanced Diagnostic and Interventional Radiology Research Center (ADIR), Imam Khomeini Hospital, Tehran University of Medical Sciences, Tehran, Iran; Department of Radiology, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran Department of Radiology, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran; Advanced Diagnostic and Interventional Radiology Research Center (ADIR), Imam Khomeini Hospital, Tehran University of Medical Sciences, Tehran, Iran; Department of Radiology, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran Shirin Aghaghazvini Shirin Aghaghazvini Advanced Diagnostic and Interventional Radiology Research Center (ADIR), Imam Khomeini Hospital, Tehran University of Medical Sciences, Tehran, Iran Advanced Diagnostic and Interventional Radiology Research Center (ADIR), Imam Khomeini Hospital, Tehran University of Medical Sciences, Tehran, Iran
en 10.5812/iranjradiol.12556 How Can a Radiologist Reveal More Practical Information Using Dynamic Study of Cavernosal Artery After Injection of Vasoactive Agents? How Can a Radiologist Reveal More Practical Information Using Dynamic Study of Cavernosal Artery After Injection of Vasoactive Agents? UROGENITAL IMAGING & CONTRAST MEDIA research-article research-article Results

The mean age was 45.6 ± 13.1 (24 to 74 ) years. Twenty-two were normal responders [considered as non-organic causes (37.3% of all patients)], 27 were classified as venous leakage, eight had arterial insufficiency and two were mixed type. Maximum PSV occurred before the fifth minute in 47 patients (92.2%). Eight patients completed all phases of erection in the first 5 minutes. We defined 8 patterns for the temporal changes in cavernosal arterial waveform. Pattern 5 was the most common pattern of venous leak; while, patterns 3 and 4 were considered as the uncommon group. Six patients demonstrated the uncommon patterns of venous leak (22.2%). Hypertension was more prevalent in the uncommon pattern of venous leak.

Patients and Methods

We evaluated 59 men who were referred for post-intracavernosal injection (ICI) color Doppler investigation of suspected erectile dysfunction (ED). The demographic data and medical history were recorded. Afterwards, first scan injection was done. Then scanning of cavernosal arteries was started about one minute after the injection and was continued thereafter. For better description of temporal changes in the waveform of cavernosal arteries, new patterns were defined and used. Patients were also classified based on previously known etiologic categories (i.e. arterial insufficiency, venous leak, mixed type, and normal response).

Objectives

Here, we tried to designate patterns for these dynamic spectral waveform changes of cavernosal arteries in patients with erectile dysfunction and subsequently better describe the extent of their underlying problem.

Conclusions

We highlight the considerable role of continuous evaluation starting one minute after intra cavernosal with ICI injection of the vasoactive agent for better description of the underlying pathologies of ED especially in patients with venous leak etiology.

Background

Erection is a dynamic multi-stage neurovascular phenomenon consisting of 4 phases. Conventional protocol of color Doppler study can easily overlook these ongoing dynamic events.

Results

The mean age was 45.6 ± 13.1 (24 to 74 ) years. Twenty-two were normal responders [considered as non-organic causes (37.3% of all patients)], 27 were classified as venous leakage, eight had arterial insufficiency and two were mixed type. Maximum PSV occurred before the fifth minute in 47 patients (92.2%). Eight patients completed all phases of erection in the first 5 minutes. We defined 8 patterns for the temporal changes in cavernosal arterial waveform. Pattern 5 was the most common pattern of venous leak; while, patterns 3 and 4 were considered as the uncommon group. Six patients demonstrated the uncommon patterns of venous leak (22.2%). Hypertension was more prevalent in the uncommon pattern of venous leak.

Patients and Methods

We evaluated 59 men who were referred for post-intracavernosal injection (ICI) color Doppler investigation of suspected erectile dysfunction (ED). The demographic data and medical history were recorded. Afterwards, first scan injection was done. Then scanning of cavernosal arteries was started about one minute after the injection and was continued thereafter. For better description of temporal changes in the waveform of cavernosal arteries, new patterns were defined and used. Patients were also classified based on previously known etiologic categories (i.e. arterial insufficiency, venous leak, mixed type, and normal response).

Objectives

Here, we tried to designate patterns for these dynamic spectral waveform changes of cavernosal arteries in patients with erectile dysfunction and subsequently better describe the extent of their underlying problem.

Conclusions

We highlight the considerable role of continuous evaluation starting one minute after intra cavernosal with ICI injection of the vasoactive agent for better description of the underlying pathologies of ED especially in patients with venous leak etiology.

Background

Erection is a dynamic multi-stage neurovascular phenomenon consisting of 4 phases. Conventional protocol of color Doppler study can easily overlook these ongoing dynamic events.

Papaverine;Doppler Ultrasonography, Erectile Dysfunction Papaverine;Doppler Ultrasonography, Erectile Dysfunction http://www.Iranjradiol.com/index.php?page=article&article_id=12556 Seyyed Morteza Bagheri Seyyed Morteza Bagheri Department of Radiology, Hasheminejad Hospital, Iran University of Medical Sciences, Tehran, Iran Department of Radiology, Hasheminejad Hospital, Iran University of Medical Sciences, Tehran, Iran Mohammad Hadi Gharib Mohammad Hadi Gharib Department of Radiology, Hasheminejad Hospital, Iran University of Medical Sciences, Tehran, Iran; Department of Radiology, Hasheminejad Hospital, Iran University of Medical Sciences, Tehran, Iran. Tel: +98-218116488, Fax: +98-218116528 Department of Radiology, Hasheminejad Hospital, Iran University of Medical Sciences, Tehran, Iran; Department of Radiology, Hasheminejad Hospital, Iran University of Medical Sciences, Tehran, Iran. Tel: +98-218116488, Fax: +98-218116528
en 10.5812/iranjradiol.7054 Ectopic Mediastinal Thyroid Tissue With a Normally Located Thyroid Gland Ectopic Mediastinal Thyroid Tissue With a Normally Located Thyroid Gland CHEST IMAGING case-report case-report

Ectopic thyroid tissue (ETT) is a rare entity and a challenging differential diagnosis. This is a report of a case of a mediastinal mass that was found to be an ectopic mediastinal thyroid tissue, in a 77-year-old woman who was admitted to our hospital for breast cancer management. The mediastinal mass was identified in the postsurgical computed tomography (CT) scan of the chest and was suspected as mediastinal lymph node metastasis. A CT-guided percutaneous transthoracic punch biopsy (CT-TPB) proved to be an adequate diagnostic tool to exclude malignancy and provide a definite diagnosis of the mediastinal mass. We find that CT-guided punch biopsy as a useful diagnostic alternative enabling histopathological specimens to be obtained from mediastinal masses and lymph nodes suspected of malignancy.

Ectopic thyroid tissue (ETT) is a rare entity and a challenging differential diagnosis. This is a report of a case of a mediastinal mass that was found to be an ectopic mediastinal thyroid tissue, in a 77-year-old woman who was admitted to our hospital for breast cancer management. The mediastinal mass was identified in the postsurgical computed tomography (CT) scan of the chest and was suspected as mediastinal lymph node metastasis. A CT-guided percutaneous transthoracic punch biopsy (CT-TPB) proved to be an adequate diagnostic tool to exclude malignancy and provide a definite diagnosis of the mediastinal mass. We find that CT-guided punch biopsy as a useful diagnostic alternative enabling histopathological specimens to be obtained from mediastinal masses and lymph nodes suspected of malignancy.

Ectopic;Thyroid Gland;Mediastinum Ectopic;Thyroid Gland;Mediastinum http://www.Iranjradiol.com/index.php?page=article&article_id=7054 Mohamed Abdel Aal Mohamed Abdel Aal Institute of Diagnostic and Interventional Radiology/Neuroradiology, West Kusten Klinikum Heide Academic Teaching Hospital, Universities of Kiel, Lubeck, Germany Institute of Diagnostic and Interventional Radiology/Neuroradiology, West Kusten Klinikum Heide Academic Teaching Hospital, Universities of Kiel, Lubeck, Germany Fabian Scheer Fabian Scheer Institute of Diagnostic and Interventional Radiology/Neuroradiology, West Kusten Klinikum Heide Academic Teaching Hospital, Universities of Kiel, Lubeck, Germany Institute of Diagnostic and Interventional Radiology/Neuroradiology, West Kusten Klinikum Heide Academic Teaching Hospital, Universities of Kiel, Lubeck, Germany Reimer Andresen Reimer Andresen Institute of Diagnostic and Interventional Radiology/Neuroradiology, West Kusten Klinikum Heide Academic Teaching Hospital, Universities of Kiel, Lubeck, Germany; Institute of Diagnostic and Interventional Radiology/Neuroradiology, West Kusten Klinikum Heide Academic Teaching Hospital, Universities of Kiel, Lubeck, Germany. Tel: +49-4817852401, Fax: +49-4817852409 Institute of Diagnostic and Interventional Radiology/Neuroradiology, West Kusten Klinikum Heide Academic Teaching Hospital, Universities of Kiel, Lubeck, Germany; Institute of Diagnostic and Interventional Radiology/Neuroradiology, West Kusten Klinikum Heide Academic Teaching Hospital, Universities of Kiel, Lubeck, Germany. Tel: +49-4817852401, Fax: +49-4817852409
en 10.5812/iranjradiol.11270 Ultrasonographic Diagnosis of Lipofibromatous Hamartoma of the Median Nerve Ultrasonographic Diagnosis of Lipofibromatous Hamartoma of the Median Nerve case-report case-report

Lipofibromatous hamartoma (LFH) is an extremely rare benign tumor, which is characterized by an excessive infiltration of the epineurium and perineurium by fibroadipose tissues. A 27-year-old woman was diagnosed with left carpal tunnel syndrome (CTS) due to (LFH) of the median nerve. LFH was diagnosed by MRI and sonography; the characteristic ultrasonographic feature of LFH showed a good correlation with pathognomonic MRI findings. The median nerve was involved along its course in the forearm; however, the patient needed carpal tunnel release because of severe compression of the median nerve under the flexor retinaculum.Radiologic evaluation of patient with CTS to evaluate probable secondary CTS is recommended.

Lipofibromatous hamartoma (LFH) is an extremely rare benign tumor, which is characterized by an excessive infiltration of the epineurium and perineurium by fibroadipose tissues. A 27-year-old woman was diagnosed with left carpal tunnel syndrome (CTS) due to (LFH) of the median nerve. LFH was diagnosed by MRI and sonography; the characteristic ultrasonographic feature of LFH showed a good correlation with pathognomonic MRI findings. The median nerve was involved along its course in the forearm; however, the patient needed carpal tunnel release because of severe compression of the median nerve under the flexor retinaculum.Radiologic evaluation of patient with CTS to evaluate probable secondary CTS is recommended.

Carpal Tunnel Syndrome;Hamartoma;Median Nerve Carpal Tunnel Syndrome;Hamartoma;Median Nerve http://www.Iranjradiol.com/index.php?page=article&article_id=11270 Ahmadreza Afshar Ahmadreza Afshar Department of Orthopedics and Hand Surgery, Urmia University of Medical Sciences, Urmia, Iran Department of Orthopedics and Hand Surgery, Urmia University of Medical Sciences, Urmia, Iran Omid Assadzadeh Omid Assadzadeh Department of Orthopedics and Hand Surgery, Urmia University of Medical Sciences, Urmia, Iran Department of Orthopedics and Hand Surgery, Urmia University of Medical Sciences, Urmia, Iran Afshin Mohammadi Afshin Mohammadi Department of Radiology, Urmia University of Medical Sciences, Urmia, Iran; Department of Radiology, Urmia University of Medical Sciences, Urmia, Iran. Tel: +98-4413455810, Fax: +98-4412353561 Department of Radiology, Urmia University of Medical Sciences, Urmia, Iran; Department of Radiology, Urmia University of Medical Sciences, Urmia, Iran. Tel: +98-4413455810, Fax: +98-4412353561
en 10.5812/iranjradiol.15995 A Case of Pulmonary Artery Hydatid Cyst Observed on Endobronchial Ultrasound A Case of Pulmonary Artery Hydatid Cyst Observed on Endobronchial Ultrasound CHEST IMAGING case-report case-report

Hydatid cyst (HC) is a parasitic disease that may involve many organs, especially the lung and the liver. Pulmonary artery location of the hydatid cyst is extremely rare, but it may cause life-threatening complications. We report a case of a hydatid cyst that completely filled the left main pulmonary artery and its distal part without cardiac involvement. Thoracic computed tomography showed filling defects in the pulmonary arteries. Endobronchial ultrasound was performed for differential diagnosis and it showed a cystic lesion. Hydatid cyst-specific IgE and hem agglutination test results were positive. In the literature, cases like this in which the diagnosis of pulmonary hydatid cyst is made by endobronchial ultrasound are not usually seen. Although many imaging modalities such as plain chest radiography, cross-sectional imaging (MDCT and MRI), echocardiography and conventional pulmonary angiography have been used in the diagnostic approach, we recommend endobronchial ultrasound for the differential diagnosis of cases with cystic formation.

Hydatid cyst (HC) is a parasitic disease that may involve many organs, especially the lung and the liver. Pulmonary artery location of the hydatid cyst is extremely rare, but it may cause life-threatening complications. We report a case of a hydatid cyst that completely filled the left main pulmonary artery and its distal part without cardiac involvement. Thoracic computed tomography showed filling defects in the pulmonary arteries. Endobronchial ultrasound was performed for differential diagnosis and it showed a cystic lesion. Hydatid cyst-specific IgE and hem agglutination test results were positive. In the literature, cases like this in which the diagnosis of pulmonary hydatid cyst is made by endobronchial ultrasound are not usually seen. Although many imaging modalities such as plain chest radiography, cross-sectional imaging (MDCT and MRI), echocardiography and conventional pulmonary angiography have been used in the diagnostic approach, we recommend endobronchial ultrasound for the differential diagnosis of cases with cystic formation.

Hydatid Cyst;Pulmonary Artery;Endobronchial Ultrasound Hydatid Cyst;Pulmonary Artery;Endobronchial Ultrasound http://www.Iranjradiol.com/index.php?page=article&article_id=15995 Aysegul Senturk Aysegul Senturk Department of Pulmonary Diseases, Ankara Ataturk Training and Research Hospital, Ankara, Turkey; Department of Pulmonary Diseases, Ankara Ataturk Training and Research Hospital, Ankara, Turkey. Tel: +90-3122912525, Fax: +90-3122912527 Department of Pulmonary Diseases, Ankara Ataturk Training and Research Hospital, Ankara, Turkey; Department of Pulmonary Diseases, Ankara Ataturk Training and Research Hospital, Ankara, Turkey. Tel: +90-3122912525, Fax: +90-3122912527 Mukremin Er Mukremin Er Department of Pulmonary Diseases, Ankara Ataturk Training and Research Hospital, Ankara, Turkey Department of Pulmonary Diseases, Ankara Ataturk Training and Research Hospital, Ankara, Turkey Aysegul Karalezli Aysegul Karalezli Department of Pulmonary Diseases, Ankara Ataturk Training and Research Hospital, Ankara, Turkey Department of Pulmonary Diseases, Ankara Ataturk Training and Research Hospital, Ankara, Turkey Zeynep Ilerisoy Yakut Zeynep Ilerisoy Yakut Department of Radiology, Ankara Ataturk Training and Research Hospital, Ankara, Turkey Department of Radiology, Ankara Ataturk Training and Research Hospital, Ankara, Turkey Ayse Nur Soyturk Ayse Nur Soyturk Department of Pulmonary Diseases, Ankara Ataturk Training and Research Hospital, Ankara, Turkey Department of Pulmonary Diseases, Ankara Ataturk Training and Research Hospital, Ankara, Turkey Huseyin Cetin Huseyin Cetin Department of Radiology, Ankara Ataturk Training and Research Hospital, Ankara, Turkey Department of Radiology, Ankara Ataturk Training and Research Hospital, Ankara, Turkey Hatice Canan Hasanoglu Hatice Canan Hasanoglu Department of Pulmonary Diseases, Yildirim Beyazit University of Medicine, Ankara, Turkey Department of Pulmonary Diseases, Yildirim Beyazit University of Medicine, Ankara, Turkey
en 10.5812/iranjradiol.12708 Comparison of the Accuracy of DWI and Ultrasonography in Screening Hepatocellular Carcinoma in Patients With Chronic Liver Disease Comparison of the Accuracy of DWI and Ultrasonography in Screening Hepatocellular Carcinoma in Patients With Chronic Liver Disease ABDOMINAL IMAGING research-article research-article Conclusion

Due to the significant improvement in the treatment of early stage of HCC compared to the previous decade, we suggest a fast, non-invasive, more accurate, but more expensive method (HASTE, OP/IP T1W sequences MRI combined with DWI) rather than US for the screening of HCC in liver cirrhosis.

Results

Combination of limited sequences MRI and DWI had the highest accuracy (94.79%) followed by DWI alone followed by limited sequence MRI alone. The least accuracy was for US (78.12%) with a statistically significant difference.

Objectives

In this study, we compared the accuracy of diffusion weighted imaging (DWI) combined with limited sequence magnetic resonance imaging (MRI) set as a potentially quick and practical MR candidate with ultrasonography (US) for screening of HCC in patients with cirrhosis.

Patients and Methods

Of 96 patients with cirrhosis, 30 who had concomitant HCC proved by pathology were selected. MRI, DWI, and US of the liver were performed for the patients. Sensitivity, specificity, and accuracy of DWI alone, limited sequences MRI alone, a combination of them, and US were calculated for the detection of HCC in these patients and then comparison between these modalities was performed.

Background

Hepatocellular carcinoma (HCC) is a neoplasm usually arising in a cirrhotic liver by a multistep carcinogenesis process. Early detection of HCC and accurate assessment of tumor burden are crucial to successful treatment planning and long-term survival.

Conclusion

Due to the significant improvement in the treatment of early stage of HCC compared to the previous decade, we suggest a fast, non-invasive, more accurate, but more expensive method (HASTE, OP/IP T1W sequences MRI combined with DWI) rather than US for the screening of HCC in liver cirrhosis.

Results

Combination of limited sequences MRI and DWI had the highest accuracy (94.79%) followed by DWI alone followed by limited sequence MRI alone. The least accuracy was for US (78.12%) with a statistically significant difference.

Objectives

In this study, we compared the accuracy of diffusion weighted imaging (DWI) combined with limited sequence magnetic resonance imaging (MRI) set as a potentially quick and practical MR candidate with ultrasonography (US) for screening of HCC in patients with cirrhosis.

Patients and Methods

Of 96 patients with cirrhosis, 30 who had concomitant HCC proved by pathology were selected. MRI, DWI, and US of the liver were performed for the patients. Sensitivity, specificity, and accuracy of DWI alone, limited sequences MRI alone, a combination of them, and US were calculated for the detection of HCC in these patients and then comparison between these modalities was performed.

Background

Hepatocellular carcinoma (HCC) is a neoplasm usually arising in a cirrhotic liver by a multistep carcinogenesis process. Early detection of HCC and accurate assessment of tumor burden are crucial to successful treatment planning and long-term survival.

Hepatocellular Carcinoma;Liver Cirrhosis;Diffusion Magnetic Resonance Imaging;Ultrasonography Hepatocellular Carcinoma;Liver Cirrhosis;Diffusion Magnetic Resonance Imaging;Ultrasonography http://www.Iranjradiol.com/index.php?page=article&article_id=12708 Reza Jalli Reza Jalli Colorectal Research Center, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran Colorectal Research Center, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran Seyed Hamed Jafari Seyed Hamed Jafari Department of Radiology, Medical Imaging Research Center, Shiraz University of Medical Sciences, Shiraz, Iran; Department of Radiology, Medical Imaging Research Center, Shiraz University of Medical Sciences, Shiraz, Iran. Tel: +98-917-3138381, Fax: +98-711-6302442 Department of Radiology, Medical Imaging Research Center, Shiraz University of Medical Sciences, Shiraz, Iran; Department of Radiology, Medical Imaging Research Center, Shiraz University of Medical Sciences, Shiraz, Iran. Tel: +98-917-3138381, Fax: +98-711-6302442 Sepideh Sefidbakht Sepideh Sefidbakht Department of Radiology, Medical Imaging Research Center, Shiraz University of Medical Sciences, Shiraz, Iran Department of Radiology, Medical Imaging Research Center, Shiraz University of Medical Sciences, Shiraz, Iran Kourosh Kazemi Kourosh Kazemi Department of General Surgery, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran Department of General Surgery, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
en 10.5812/iranjradiol.12597 Clinico-Radiologic Findings in Primary Cutaneous Extranodal Natural Killer/T-Cell Lymphoma, Nasal Type Mimicking Cellulitis of the Left Arm Clinico-Radiologic Findings in Primary Cutaneous Extranodal Natural Killer/T-Cell Lymphoma, Nasal Type Mimicking Cellulitis of the Left Arm case-report case-report

Extranodal natural killer (NK)/T-cell lymphoma is a very rare and aggressive disease characterized histopathologically by an Epstein-Barr virus (EBV)-positive atypical lymphoid cytotoxic infiltrate, extensive vascular destruction, and prominent tissue necrosis. It commonly shows cutaneous lesions that primarily or secondarily mimic cellulitis at the primary site. We report on a very rare case of extranodal NK/T-cell lymphoma, nasal type of skin/soft tissue, in a 64-year-old man, and describe the radiological findings. The condition was misdiagnosed as cellulitis of the left arm based on initial noninvasive clinical and radiologic work-up.

Extranodal natural killer (NK)/T-cell lymphoma is a very rare and aggressive disease characterized histopathologically by an Epstein-Barr virus (EBV)-positive atypical lymphoid cytotoxic infiltrate, extensive vascular destruction, and prominent tissue necrosis. It commonly shows cutaneous lesions that primarily or secondarily mimic cellulitis at the primary site. We report on a very rare case of extranodal NK/T-cell lymphoma, nasal type of skin/soft tissue, in a 64-year-old man, and describe the radiological findings. The condition was misdiagnosed as cellulitis of the left arm based on initial noninvasive clinical and radiologic work-up.

Natural Killer T-Cell;Lymphoma;Cellulitis Natural Killer T-Cell;Lymphoma;Cellulitis http://www.Iranjradiol.com/index.php?page=article&article_id=12597 Soo Hyun Kim Soo Hyun Kim Department of Radiology, Chonnam National University Medical School, Gwangju, South Korea Department of Radiology, Chonnam National University Medical School, Gwangju, South Korea Hyun Ju Seon Hyun Ju Seon Department of Radiology, Chonnam National University Medical School, Gwangju, South Korea; Department of Radiology, Chonnam National University Medical School, Gwangju, South Korea. Tel: +82-622205888, Fax: +82-622264380 Department of Radiology, Chonnam National University Medical School, Gwangju, South Korea; Department of Radiology, Chonnam National University Medical School, Gwangju, South Korea. Tel: +82-622205888, Fax: +82-622264380 Yoo Duk Choi Yoo Duk Choi Department of Radiology, Chonnam National University Medical School, Gwangju, South Korea Department of Radiology, Chonnam National University Medical School, Gwangju, South Korea Sook Jung Yun Sook Jung Yun Department of Dermatology, Chonnam National University Medical School, Gwangju, South Korea Department of Dermatology, Chonnam National University Medical School, Gwangju, South Korea
en 10.5812/iranjradiol.14258 Comparing Color Doppler Ultrasonography and Angiography to Assess Traumatic Arterial Injuries of the Extremities Comparing Color Doppler Ultrasonography and Angiography to Assess Traumatic Arterial Injuries of the Extremities VASCULAR & INTERVENTIONAL RADIOLOGY research-article research-article Results

Color Doppler USG had a sensitivity of 95% and specificity of 98% in diagnosis of arterial injury. Positive and negative predictive values of Doppler USG were 92.5% and 94.2%, respectively.

Conclusions

Color Doppler USG can be used as a reliable modality with acceptable sensitivity and specificity values to screen hemodynamically stable patients with limb trauma suspicious for arterial injury.

Objectives

The present study aimed to evaluate the diagnostic value of color Doppler USG compared to conventional angiography in traumatic arterial injuries of extremities.

Patients and Methods

Seventy-five patients with extremity trauma suspicious for arterial injury were examined by color Doppler USG just before angiography. Doppler pattern and flow states were assessed, then angiography was performed. The results of duplex USG were compared with angiography.

Background

Traumatic events are one of the major causes of arterial injuries. Physical examination is not a good predictor of the extent of injuries and arteriography is considered as the gold standard for this purpose. In the recent years, noninvasive modalities are increasingly replacing diagnostic arteriography. Color Doppler ultrasonography (USG) is an excellent method to investigate arterial diseases.

Results

Color Doppler USG had a sensitivity of 95% and specificity of 98% in diagnosis of arterial injury. Positive and negative predictive values of Doppler USG were 92.5% and 94.2%, respectively.

Conclusions

Color Doppler USG can be used as a reliable modality with acceptable sensitivity and specificity values to screen hemodynamically stable patients with limb trauma suspicious for arterial injury.

Objectives

The present study aimed to evaluate the diagnostic value of color Doppler USG compared to conventional angiography in traumatic arterial injuries of extremities.

Patients and Methods

Seventy-five patients with extremity trauma suspicious for arterial injury were examined by color Doppler USG just before angiography. Doppler pattern and flow states were assessed, then angiography was performed. The results of duplex USG were compared with angiography.

Background

Traumatic events are one of the major causes of arterial injuries. Physical examination is not a good predictor of the extent of injuries and arteriography is considered as the gold standard for this purpose. In the recent years, noninvasive modalities are increasingly replacing diagnostic arteriography. Color Doppler ultrasonography (USG) is an excellent method to investigate arterial diseases.

Color Doppler Ultrasonography;Trauma;Angiography;Blood Vessels Color Doppler Ultrasonography;Trauma;Angiography;Blood Vessels http://www.Iranjradiol.com/index.php?page=article&article_id=14258 Masoud Pezeshki Rad Masoud Pezeshki Rad School of Medicine, Vascular and Endovascular Research Center, Imam Reza Hospital, Mashhad University of Medical Sciences, Mashhad, Iran School of Medicine, Vascular and Endovascular Research Center, Imam Reza Hospital, Mashhad University of Medical Sciences, Mashhad, Iran Mahyar Mohammadifard Mahyar Mohammadifard School of Medicine, Vascular and Endovascular Research Center, Imam Reza Hospital, Birjand University of Medical Sciences, Birjand, Iran; chool of Medicine, Vascular and Endovascular Research Center, Imam Reza Hospital, Birjand University of Medical Sciences, Birjand, Iran. Tel: +98-5118414499, Fax: +98-5612226898 School of Medicine, Vascular and Endovascular Research Center, Imam Reza Hospital, Birjand University of Medical Sciences, Birjand, Iran; chool of Medicine, Vascular and Endovascular Research Center, Imam Reza Hospital, Birjand University of Medical Sciences, Birjand, Iran. Tel: +98-5118414499, Fax: +98-5612226898 Hassan Ravari Hassan Ravari School of Medicine, Vascular and Endovascular Research Center, Imam Reza Hospital, Mashhad University of Medical Sciences, Mashhad, Iran School of Medicine, Vascular and Endovascular Research Center, Imam Reza Hospital, Mashhad University of Medical Sciences, Mashhad, Iran Donya Farrokh Donya Farrokh School of Medicine, Vascular and Endovascular Research Center, Imam Reza Hospital, Mashhad University of Medical Sciences, Mashhad, Iran School of Medicine, Vascular and Endovascular Research Center, Imam Reza Hospital, Mashhad University of Medical Sciences, Mashhad, Iran Emad Ansaripour Emad Ansaripour School of Medicine, Vascular and Endovascular Research Center, Imam Reza Hospital, Mashhad University of Medical Sciences, Mashhad, Iran School of Medicine, Vascular and Endovascular Research Center, Imam Reza Hospital, Mashhad University of Medical Sciences, Mashhad, Iran Elena Saremi Elena Saremi School of Medicine, Vascular and Endovascular Research Center, Imam Reza Hospital, Mashhad University of Medical Sciences, Mashhad, Iran School of Medicine, Vascular and Endovascular Research Center, Imam Reza Hospital, Mashhad University of Medical Sciences, Mashhad, Iran
en 10.5812/iranjradiol.13547 Clinical and Laboratory Findings in Patients with Acute Respiratory Symptoms that Suggest the Necessity of Chest X-ray for Community-Acquired Pneumonia Clinical and Laboratory Findings in Patients with Acute Respiratory Symptoms that Suggest the Necessity of Chest X-ray for Community-Acquired Pneumonia research-article research-article Results

The data showed that vital signs and physical examination findings are useful screening parameters for predicting chest radiograph findings in outpatient settings. Therefore, by implementing a prediction rule, we would be able to determine which patients would benefit from a chest X-Ray (sensitivity, 94% and specificity, 57%).

Conclusion

This study's findings suggest that requesting chest radiographs might not be necessary in patients with acute respiratory symptoms unless the vital signs and/or physical examination findings are abnormal. Considering the 94% sensitivity of this rule for predicting CAP, a chest radiograph is required for patients with unreliable follow-ups or moderate to high likelihood of morbidity if CAP is not initially detected.

Background

Pneumonia is a common illness in all parts of the world and is considered as a major cause of death among all age groups. Nevertheless, only about 5% of patients referring to their primary care physicians with acute respiratory symptoms will develop pneumonia.

Objectives

This study was performed to derive practical criteria for performing chest radiographs for the evaluation of community-acquired pneumonia (CAP).

Patients and Methods

A total of 420 patients with acute respiratory symptoms and positive findings on chest radiograph were evaluated from December 2008 to December 2009. The subjects were referred to outpatient clinics or emergency departments of Birjand's medical university hospitals, Iran, and were enrolled as positive cases. A checklist was completed for each patient including their demographic information, clinical signs and symptoms (cough, sputum production, dyspnea, chest pain, fever, tachycardia, and tachypnea), abnormal findings in pulmonary auscultation and laboratory findings (erythrocyte sedimentation rate, C-reactive protein levels, and white blood cell count). An equal number of age-matched individuals with acute respiratory symptoms, but insignificant findings on chest radiography, were included as the control group. Finally, the diagnostic values of different findings were compared.

Results

The data showed that vital signs and physical examination findings are useful screening parameters for predicting chest radiograph findings in outpatient settings. Therefore, by implementing a prediction rule, we would be able to determine which patients would benefit from a chest X-Ray (sensitivity, 94% and specificity, 57%).

Conclusion

This study's findings suggest that requesting chest radiographs might not be necessary in patients with acute respiratory symptoms unless the vital signs and/or physical examination findings are abnormal. Considering the 94% sensitivity of this rule for predicting CAP, a chest radiograph is required for patients with unreliable follow-ups or moderate to high likelihood of morbidity if CAP is not initially detected.

Background

Pneumonia is a common illness in all parts of the world and is considered as a major cause of death among all age groups. Nevertheless, only about 5% of patients referring to their primary care physicians with acute respiratory symptoms will develop pneumonia.

Objectives

This study was performed to derive practical criteria for performing chest radiographs for the evaluation of community-acquired pneumonia (CAP).

Patients and Methods

A total of 420 patients with acute respiratory symptoms and positive findings on chest radiograph were evaluated from December 2008 to December 2009. The subjects were referred to outpatient clinics or emergency departments of Birjand's medical university hospitals, Iran, and were enrolled as positive cases. A checklist was completed for each patient including their demographic information, clinical signs and symptoms (cough, sputum production, dyspnea, chest pain, fever, tachycardia, and tachypnea), abnormal findings in pulmonary auscultation and laboratory findings (erythrocyte sedimentation rate, C-reactive protein levels, and white blood cell count). An equal number of age-matched individuals with acute respiratory symptoms, but insignificant findings on chest radiography, were included as the control group. Finally, the diagnostic values of different findings were compared.

Pneumonia;Mass Chest X-Ray;Prediction Rule;Acute Chest Syndrome Pneumonia;Mass Chest X-Ray;Prediction Rule;Acute Chest Syndrome http://www.Iranjradiol.com/index.php?page=article&article_id=13547 Azadeh Ebrahimzadeh Azadeh Ebrahimzadeh Department of Internal Medicine, Faculty of Medicine, Birjand University of Medical Sciences, Birjand, Iran Department of Internal Medicine, Faculty of Medicine, Birjand University of Medical Sciences, Birjand, Iran Mahyar Mohammadifard Mahyar Mohammadifard Department of Radiology, Imam Reza Hospital, Birjand University of Medical Sciences, Birjand, Iran; Department of Radiology, Imam Reza Hospital, Birjand University of Medical Sciences, Birjand, Iran. Tel: +98-5118414499, Fax: +98-5612226898 Department of Radiology, Imam Reza Hospital, Birjand University of Medical Sciences, Birjand, Iran; Department of Radiology, Imam Reza Hospital, Birjand University of Medical Sciences, Birjand, Iran. Tel: +98-5118414499, Fax: +98-5612226898 Godratallah Naseh Godratallah Naseh Department of Surgery, Imam Reza Hospital, Birjand University of Medical Sciences, Birjand, Iran Department of Surgery, Imam Reza Hospital, Birjand University of Medical Sciences, Birjand, Iran Alireza Mirgholami Alireza Mirgholami Department of Radiology, Imam Reza Hospital, Birjand University of Medical Sciences, Birjand, Iran Department of Radiology, Imam Reza Hospital, Birjand University of Medical Sciences, Birjand, Iran
en 10.5812/iranjradiol.6878 Multimodality Imaging of Left Circumflex Artery to Coronary Sinus Fistula Multimodality Imaging of Left Circumflex Artery to Coronary Sinus Fistula case-report case-report

Coronary artery fistula (CAF) is a rare anomaly of the coronary artery. Patients with this condition are usually asymptomatic. However, cardiac failure may occur later in life due to progressive enlargement of the fistula. Diagnosis is traditionally made by echocardiogram and conventional angiogram. However with the advantage of new technologies such as computed tomography (CT) coronary angiography, the course and communications of these fistulae can be delineated non-invasively and with greater accuracy. We report a case of a left circumflex artery fistula to the coronary sinus which was suspected on echocardiogram and the diagnosis was clinched on ECG-gated CT.

Coronary artery fistula (CAF) is a rare anomaly of the coronary artery. Patients with this condition are usually asymptomatic. However, cardiac failure may occur later in life due to progressive enlargement of the fistula. Diagnosis is traditionally made by echocardiogram and conventional angiogram. However with the advantage of new technologies such as computed tomography (CT) coronary angiography, the course and communications of these fistulae can be delineated non-invasively and with greater accuracy. We report a case of a left circumflex artery fistula to the coronary sinus which was suspected on echocardiogram and the diagnosis was clinched on ECG-gated CT.

Circumflex Artery;Coronary Sinus;Fistula;Computed tomography Circumflex Artery;Coronary Sinus;Fistula;Computed tomography http://www.Iranjradiol.com/index.php?page=article&article_id=6878 Tan Ling Sze Tan Ling Sze Department of Biomedical Imaging, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia Department of Biomedical Imaging, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia Yang Faridah Abdul Aziz Yang Faridah Abdul Aziz Department of Biomedical Imaging, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia Department of Biomedical Imaging, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia Norzailin Abu Bakar Norzailin Abu Bakar Department of Biomedical Imaging, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia; Department of Radiology, University Kebangsaan Malaysia Medical Centre, Kuala Lumpur, Malaysia; Department of Biomedical Imaging, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia. Tel: +60-123-245709, Fax: +60-391-737824 Department of Biomedical Imaging, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia; Department of Radiology, University Kebangsaan Malaysia Medical Centre, Kuala Lumpur, Malaysia; Department of Biomedical Imaging, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia. Tel: +60-123-245709, Fax: +60-391-737824 Fadhli Mohd Sani Fadhli Mohd Sani Department of Biomedical Imaging, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia Department of Biomedical Imaging, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia Hamid Oemar Hamid Oemar Department of Biomedical Imaging, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia; Department of Cardiology, Faculty of Medicine, University Institute of Technology of Malaysia, Selangor, Malaysia Department of Biomedical Imaging, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia; Department of Cardiology, Faculty of Medicine, University Institute of Technology of Malaysia, Selangor, Malaysia
en 10.5812/iranjradiol.12026 Preliminary Study on the Kidney Elasticity Quantification in Patients With Chronic Kidney Disease Using Virtual Touch Tissue Quantification Preliminary Study on the Kidney Elasticity Quantification in Patients With Chronic Kidney Disease Using Virtual Touch Tissue Quantification UROGENITAL IMAGING & CONTRAST MEDIA research-article research-article Conclusion

VTTQ can sensitively detect the elasticity changes in patients with CKD, and it can effectively predict renal insufficiency. This technology provides a valuable tool for the assessment of CKD.

Patients and Methods

Sixty-five patients with CKD and seventy healthy participants were included in this study. A total of 270 kidneys were examined by VTTQ. The kidney elasticity was expressed as shear wave velocity. The SWV values, blood serum creatinine (Scr)/BUN and pathological findings were analyzed and compared between patients with CKD and healthy participants.

Results

In patients with CKD and healthy participants, the SWV values both gradually decreased from the renal cortex to the medulla and renal sinus The SWV value of the renal cortex in patients with CKD was less than that of healthy participants (P < 0.05), and the SWV value of the renal cortex in patients with renal insufficiency was significantly less than in those with normal renal function (2.46 ± 0.15 vs. 3.45 ± 0.26 m/s, P < 0.05). The best cutoff value for predicting renal insufficiency (Scr > 1.24 mg/dL or/and BUN > 21 mg/DL) was a SWV value of the renal cortex of less than 1.92 m/s with a sensitivity of 84.4% (95% CI: 67.2-94.7%) and a specificity of 96.8% (95% CI: 83.3-99.9%) (P < 0.001).

Objectives

The purpose of this study was to describe the SWV values of the kidney by VTTQ and to examine the clinical usefulness of this procedure in the evaluation of elasticity changes in the kidneys of patients with chronic kidney disease (CKD).

Background

Virtual touch tissue quantification (VTTQ) provides numerical measurements (shear wave velocity (SWV) values) of tissue stiffness.

Conclusion

VTTQ can sensitively detect the elasticity changes in patients with CKD, and it can effectively predict renal insufficiency. This technology provides a valuable tool for the assessment of CKD.

Patients and Methods

Sixty-five patients with CKD and seventy healthy participants were included in this study. A total of 270 kidneys were examined by VTTQ. The kidney elasticity was expressed as shear wave velocity. The SWV values, blood serum creatinine (Scr)/BUN and pathological findings were analyzed and compared between patients with CKD and healthy participants.

Results

In patients with CKD and healthy participants, the SWV values both gradually decreased from the renal cortex to the medulla and renal sinus The SWV value of the renal cortex in patients with CKD was less than that of healthy participants (P < 0.05), and the SWV value of the renal cortex in patients with renal insufficiency was significantly less than in those with normal renal function (2.46 ± 0.15 vs. 3.45 ± 0.26 m/s, P < 0.05). The best cutoff value for predicting renal insufficiency (Scr > 1.24 mg/dL or/and BUN > 21 mg/DL) was a SWV value of the renal cortex of less than 1.92 m/s with a sensitivity of 84.4% (95% CI: 67.2-94.7%) and a specificity of 96.8% (95% CI: 83.3-99.9%) (P < 0.001).

Objectives

The purpose of this study was to describe the SWV values of the kidney by VTTQ and to examine the clinical usefulness of this procedure in the evaluation of elasticity changes in the kidneys of patients with chronic kidney disease (CKD).

Background

Virtual touch tissue quantification (VTTQ) provides numerical measurements (shear wave velocity (SWV) values) of tissue stiffness.

Ultrasonography;Virtual Touch Tissue Quantitative;Chronic Kidney Disease Ultrasonography;Virtual Touch Tissue Quantitative;Chronic Kidney Disease http://www.Iranjradiol.com/index.php?page=article&article_id=12026 Xiao Zhi Zheng Xiao Zhi Zheng Department of Ultrasound, Jinling Hospital, Nanjing University School of Medicine, Nanjing, The People's Republic of China; Department of Ultrasound, The Fourth Affiliated Hospital of Nantong, Yancheng, The People's Republic of China Department of Ultrasound, Jinling Hospital, Nanjing University School of Medicine, Nanjing, The People's Republic of China; Department of Ultrasound, The Fourth Affiliated Hospital of Nantong, Yancheng, The People's Republic of China Bin Yang Bin Yang Department of Ultrasound, Jinling Hospital, Nanjing University School of Medicine, Nanjing, The People's Republic of China; Department of Ultrasound, Jinling Hospital, Nanjing University School of Medicine, Nanjing, The People's Republic of China. Tel: +86-2580861314, Fax: +86-2580863136 Department of Ultrasound, Jinling Hospital, Nanjing University School of Medicine, Nanjing, The People's Republic of China; Department of Ultrasound, Jinling Hospital, Nanjing University School of Medicine, Nanjing, The People's Republic of China. Tel: +86-2580861314, Fax: +86-2580863136 Ning Hua Fu Ning Hua Fu Department of Ultrasound, Jinling Hospital, Nanjing University School of Medicine, Nanjing, The People's Republic of China Department of Ultrasound, Jinling Hospital, Nanjing University School of Medicine, Nanjing, The People's Republic of China
en 10.5812/iranjradiol.14556 The Value of Prostate MRI with Endorectal Coil in Detecting Seminal Vesicle Involvement in Patients with Prostate Cancer The Value of Prostate MRI with Endorectal Coil in Detecting Seminal Vesicle Involvement in Patients with Prostate Cancer UROGENITAL IMAGING & CONTRAST MEDIA research-article research-article Conclusion

MRI with endorectal coil is a valuable imaging technique with suitable accuracy in detecting seminal vesicle involvement in prostate cancer.

Background

In prostate cancer, detection of seminal vesicle involvement is important because it influences the treatment planning and prognosis of the patients.

Objectives

The objective of this study was to determine the value of prostate MRI with endorectal coil in the detection of seminal vesicle involvement in patients with prostate cancer.

Patients and Methods

A total number of 238 biopsy-proven prostate cancer patients were examined by 1.5 Tesla MRI with a combination of pelvic and endorectal coils to detect seminal vesicle involvement. After radical prostatectomy, the MRI results were compared with pathology results.

Results

Seminal vesicle involvement was detected in 67 (28.1%) patients. Pathology confirmed the involvement of seminal vesicles by prostate cancer in 63 patients. In two patients, seminal vesicle involvement was diagnosed by pathology but not detected by MRI. The sensitivity was 0.97 [95% confidence interval = 0.89-0.99], the specificity was 0.98 [95% confidence interval = 0.94-0.99], the positive predictive value was 0.94 [95% confidence interval = 0.85-0.98], and the negative predictive value was 0.99 [95% confidence interval = 0.96-0.99].

Conclusion

MRI with endorectal coil is a valuable imaging technique with suitable accuracy in detecting seminal vesicle involvement in prostate cancer.

Background

In prostate cancer, detection of seminal vesicle involvement is important because it influences the treatment planning and prognosis of the patients.

Objectives

The objective of this study was to determine the value of prostate MRI with endorectal coil in the detection of seminal vesicle involvement in patients with prostate cancer.

Patients and Methods

A total number of 238 biopsy-proven prostate cancer patients were examined by 1.5 Tesla MRI with a combination of pelvic and endorectal coils to detect seminal vesicle involvement. After radical prostatectomy, the MRI results were compared with pathology results.

Results

Seminal vesicle involvement was detected in 67 (28.1%) patients. Pathology confirmed the involvement of seminal vesicles by prostate cancer in 63 patients. In two patients, seminal vesicle involvement was diagnosed by pathology but not detected by MRI. The sensitivity was 0.97 [95% confidence interval = 0.89-0.99], the specificity was 0.98 [95% confidence interval = 0.94-0.99], the positive predictive value was 0.94 [95% confidence interval = 0.85-0.98], and the negative predictive value was 0.99 [95% confidence interval = 0.96-0.99].

Prostate Cancer;Seminal Vesicles;Staging;MRI Prostate Cancer;Seminal Vesicles;Staging;MRI http://www.Iranjradiol.com/index.php?page=article&article_id=14556 Mahyar Ghafoori Mahyar Ghafoori Department of Radiology, Hazrat Rasoul Akram Hospital, School of Medicine, Iran University of Medical Sciences, Tehran, Iran; Advanced Diagnostic and Interventional Radiology Research Center (ADIR), Tehran University of Medical Sciences, Tehran, Iran Department of Radiology, Hazrat Rasoul Akram Hospital, School of Medicine, Iran University of Medical Sciences, Tehran, Iran; Advanced Diagnostic and Interventional Radiology Research Center (ADIR), Tehran University of Medical Sciences, Tehran, Iran Manijeh Alavi Manijeh Alavi Deputy of Research and Technology, Ministry of Health and Medical Education, Tehran, Iran; Deputy of Research and Technology, Ministry of Health and Medical Education, No. 211, Azadi Avenue, 1419943471, Tehran, Iran. Tel: +98-2166509057, Fax: +98-2166517118 Deputy of Research and Technology, Ministry of Health and Medical Education, Tehran, Iran; Deputy of Research and Technology, Ministry of Health and Medical Education, No. 211, Azadi Avenue, 1419943471, Tehran, Iran. Tel: +98-2166509057, Fax: +98-2166517118 Madjid Shakiba Madjid Shakiba Advanced Diagnostic and Interventional Radiology Research Center (ADIR), Tehran University of Medical Sciences, Tehran, Iran Advanced Diagnostic and Interventional Radiology Research Center (ADIR), Tehran University of Medical Sciences, Tehran, Iran Kamal Hoseini Kamal Hoseini Department of Urology, School of Medicine, Hazrat Rasoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran Department of Urology, School of Medicine, Hazrat Rasoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran
en 10.5812/iranjradiol.17078 Liver Biopsy Versus Non-Invasive Tests in Determining Liver Disease Status Liver Biopsy Versus Non-Invasive Tests in Determining Liver Disease Status ABDOMINAL IMAGING letter letter Liver;Biopsy;Pathology Liver;Biopsy;Pathology http://www.Iranjradiol.com/index.php?page=article&article_id=17078 Seyed Moayed Alavian Seyed Moayed Alavian Baqiyatallah Research Center for Gastroenterology and Liver Diseases, Baqiyatallah University of Medical Sciences, Tehran, Iran; Baqiyatallah Research Center for Gastroenterology and Liver Diseases, Baqiyatallah University of Medical Sciences, Tehran, Iran. Tel/Fax:+98-2188945186 Baqiyatallah Research Center for Gastroenterology and Liver Diseases, Baqiyatallah University of Medical Sciences, Tehran, Iran; Baqiyatallah Research Center for Gastroenterology and Liver Diseases, Baqiyatallah University of Medical Sciences, Tehran, Iran. Tel/Fax:+98-2188945186
en 10.5812/iranjradiol.11405 Comparison of the Efficacy of Conventional Echocardiographic Parameters in the Diagnosis of Significant Coronary Artery Stenosis Comparison of the Efficacy of Conventional Echocardiographic Parameters in the Diagnosis of Significant Coronary Artery Stenosis research-article research-article Conclusions

The coronary sinus flow per minute is the most accurate parameter among the three echocardiographic parameters mentioned above for the assessment of significant stenosis of the coronary artery.

Results

Flow (mL/minute), flow/LVM (mL/minuteg) and LV (d-s) mass A-L all correlated significantly with the percentage of stenosis (r = -0.64, P < 0.001; r = -0.47, P < 0.001; r = -0.56, P < 0.001, respectively). With the use of the percentage of stenosis > 50% as the criteria to distinguish patients with or without CAD, the areas under the ROC curve for flow (mL/minute) were 0.75, while they were 0.57 for flow/LVM (mL/minuteg) and 0.59 for LV (d-s) mass A-L. The percentage of stenosis > 70% was best detected by coronary sinus flow < 198 mL/minute (sensitivity, 81.35%; specificity, 70.37%; positive predictive value, 63.63%; negative predictive value, 86.36% and accuracy, 75%; P < 0.001).

Background

For diagnosis of significant coronary artery stenosis, the most accurate parameter among the conventional echocardiographic parameters remains unknown.

Objectives

To assess the diagnostic efficacy of conventional echocardiographic parameters in the diagnosis of significant coronary artery stenosis and their correlation with the percentage of stenosis considering conventional coronary angiography as gold standard.

Patients and Methods

Seventy eight individuals were included in the study. The three echocardiographic parameters including the coronary sinus flow [flow (mL/minute)], the global left ventricular perfusion by dividing the coronary sinus flow by left ventricular mass [flow/LVM (mL/minute)] and the difference between the left ventricular mass at end diastole and peak systole using area-length calculation methods [LV (d-s) mass A-L] were assessed using receiver operating characteristic (ROC) analysis for their accuracy to distinguish between normal subjects and patients with significant (> 50%) coronary artery disease (CAD).

Conclusions

The coronary sinus flow per minute is the most accurate parameter among the three echocardiographic parameters mentioned above for the assessment of significant stenosis of the coronary artery.

Results

Flow (mL/minute), flow/LVM (mL/minuteg) and LV (d-s) mass A-L all correlated significantly with the percentage of stenosis (r = -0.64, P < 0.001; r = -0.47, P < 0.001; r = -0.56, P < 0.001, respectively). With the use of the percentage of stenosis > 50% as the criteria to distinguish patients with or without CAD, the areas under the ROC curve for flow (mL/minute) were 0.75, while they were 0.57 for flow/LVM (mL/minuteg) and 0.59 for LV (d-s) mass A-L. The percentage of stenosis > 70% was best detected by coronary sinus flow < 198 mL/minute (sensitivity, 81.35%; specificity, 70.37%; positive predictive value, 63.63%; negative predictive value, 86.36% and accuracy, 75%; P < 0.001).

Background

For diagnosis of significant coronary artery stenosis, the most accurate parameter among the conventional echocardiographic parameters remains unknown.

Objectives

To assess the diagnostic efficacy of conventional echocardiographic parameters in the diagnosis of significant coronary artery stenosis and their correlation with the percentage of stenosis considering conventional coronary angiography as gold standard.

Patients and Methods

Seventy eight individuals were included in the study. The three echocardiographic parameters including the coronary sinus flow [flow (mL/minute)], the global left ventricular perfusion by dividing the coronary sinus flow by left ventricular mass [flow/LVM (mL/minute)] and the difference between the left ventricular mass at end diastole and peak systole using area-length calculation methods [LV (d-s) mass A-L] were assessed using receiver operating characteristic (ROC) analysis for their accuracy to distinguish between normal subjects and patients with significant (> 50%) coronary artery disease (CAD).

Coronary Sinus Flow;Myocardial Perfusion;Left Ventricular Mass;Coronary Artery Stenosis Coronary Sinus Flow;Myocardial Perfusion;Left Ventricular Mass;Coronary Artery Stenosis http://www.Iranjradiol.com/index.php?page=article&article_id=11405 Xiao Zhi Zheng Xiao Zhi Zheng Department of Ultrasound, Affiliated Hospital of Nantong University (The First People’s Hospital of Yancheng), Yancheng, P.R China Department of Ultrasound, Affiliated Hospital of Nantong University (The First People’s Hospital of Yancheng), Yancheng, P.R China Bin Yang Bin Yang Department of Ultrasound, Jinling Hospital, Nanjing University School of Medicine, Nanjing City, P.R China; Department of Ultrasound, Jinling Hospital, Nanjing University School of Medicine, Nanjing City, P.R China. Tel: +8625-80861314, Fax: +8625-80863136 Department of Ultrasound, Jinling Hospital, Nanjing University School of Medicine, Nanjing City, P.R China; Department of Ultrasound, Jinling Hospital, Nanjing University School of Medicine, Nanjing City, P.R China. Tel: +8625-80861314, Fax: +8625-80863136 Jing Wu Jing Wu Department of Ultrasound, Affiliated Hospital of Nantong University (The First People’s Hospital of Yancheng), Yancheng, P.R China Department of Ultrasound, Affiliated Hospital of Nantong University (The First People’s Hospital of Yancheng), Yancheng, P.R China