Volume changes in the gallbladder in association with various radiologic examinations.

PURPOSE: Our aim was to evaluate with sonography the volume changes of the gallbladder after intravenous administration of nonionic, iodinated contrast agents with or without ingestion of contrast agent or water. METHODS: A total of 191 patients received intravenous injection of 50 ml of nonionic contrast agent (Group A), intravenous injection of 100 ml of contrast medium (Group B), intravenous injection of 100 ml of contrast medium together with ingestion of 1000 ml of a dilute solution of contrast medium (Group C), or 1000 ml of water taken orally (Group D). The gallbladder volume was measured by ultrasonography in the fasting state in all groups, 15 minutes after intravenous injection of contrast medium in Groups A, B, and C and 30 minutes after water ingestion in Group D. RESULTS: In all groups, the volume of the gallbladder was statistically lower after the procedure than before. There was no significant difference among the groups in terms of this gallbladder volume change. CONCLUSIONS: Intravenous injection of nonionic, iodinated contrast medium or ingestion of water or a dilute solution of contrast medium for various radiological examinations results in contraction of the gallbladder. Contrast-enhanced radiological examinations may interfere with sonographic evaluation of the gallbladder. If necessary, gallbladder ultrasonographic examination should be repeated with the patient in a fasting state. (c) 2005 Wiley Periodicals, Inc. J Clin Ultrasound 33:214-217, 2005

Yaşlı bir hastada intratorasik ektopik böbrek i?le seyreden bochdalek hernisi

Bochdalek hernia is a congenital disease characterized by protrusion of the abdominal organs into the thorax through the posterior defect in the diaphragma. The detection of incidental bochdalek hernia has increased because of the widespread use of the multidedector computed tomography. It is very rare in adult population. Intrathoracic kidney in bochdalek hernia is uncommon. In this paper, a 78 year-old man who had bochdalek hernia with a kidney in the left side of the thoracic region is presented

The anatomic variations of colon detected by abdominal multi-detector computed tomography

Objectives: The aim of this study was to determine thefrequency and clinical importance of anatomic variationsof the colon.Materials and methods: Multi-detector computed tomography(MDCT) of the abdomen for various indicationswas performed in 1300 patients in radiology departmentbetween January 2010 and September 2011 were retrospectivelyanalyzed to investigate the anatomic variationsof colon.Results: The total number of patients undergoing MDCTscans was 1300, of which 640 were female and 660 male.The mean age of patients was 43.02 years (2-92). Thenumber (%) of colons according to their position were as:34 (% 2,6) anterior and 14 (% 0,9) posterior hepatodiafragmatic,40 (% 3) interposition of colon between psoasand right kidney, 3 (% 0,2) interposition of colon betweenpsoas and left kidney, 4 (% 0,3) right retrorenal, 16 (%1,2) left retrorenal, 2 (%0,2) bilateral, 10 (% 0,8) pancreaticogastric,5 (% 0,4) retrosplenic and 64 (% 4,9) highcaecum.Conclusion: Knowledge of the anatomic variations ofcolon is important for surgical planning or interventionalradiologic procedures. Multi-detector computed tomographyallows detailed visualization of these variations

The Role of Apparent Diffusion Coefficient Quantification in Differentiating Benign and Malignant Renal Masses by 3 Tesla Magnetic Resonance Imaging

Background: Diffusion-weighted magnetic resonance imaging (DWI) is a widely-accepted diagnostic modality whose efficacy has been investigated by numerous past studies in the differentiation of malignant lesions from benign entities. Aims: The aim of this study was to evaluate the efficiency of diffusion-weighted magnetic resonance imaging in the characterization of renal lesions. Study Design: Diagnostic accuracy study. Methods: A total of 137 patients with renal lesions were included in this study. The median apparent diffusion coefficient (ADC) values as well as the b 800 and b 1600 signal intensities of normal kidneys, solid components of mixed renal masses, and total cystic lesions were evaluated. Results: There were significant differences between the ADC values of lesions and normal renal parenchyma, and between the ADC values of benign and malignant renal lesions on DWIs at b values of 800 and 1600 s/mm² (p<0.001 and p<0.001, respectively). There were significant differences between the ADC values of Bosniak Category 1 and 2 cysts and the ADC values of Bosniak Category 1 and 3 cysts on DWIs at b values of 800 s/mm² (p<0.001) and 1600 s/mm2 (p<0.001). A cutoff value of 1.902 x 10-3 mm²/s for the ADC with a b value of 800 s/mm² provided 88% sensitivity and 96% specificity for differentiation between benign and malignant renal lesions. A cutoff value of 1.623 x 10-3 mm²/s for the ADC with a b value of 1600 s/mm² provided 79% sensitivity and 96% specificity (p<0.001) for the differentiation between benign and malignant renal lesions. Conclusion: Accurate assessment of renal masses is important for determining the necessity for surgical intervention. DWI provides additional value by differentiating benign from malignant renal tumors and can be added to routine kidney MRI protocols

Clinical role of 18F-FDG-PET/CT in the assessment of suspected recurrent gastric cancer after initial surgical resection: is there any effect of FDG-PET/CT in patients' management?

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