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The Comparison of Ultrasonography and Non Enhanced Helical Computed Tomography in the Diagnosis of Ureteral Calculi

By İlhan Kılınç, Cihan Akgül Özmen, Hatice Akay and Aşur Uyar


Intravenous urography, ultrasonography, and non-contrast spiral computed tomography have been used to diagnose ureteral calculi. We aimed to compare the accuracy of non-contrast spiral computed tomography with ultrasonography in the evaluation of patients with renal colic.Fourty-one patients with flank pain were examined with both computed tomography and ultrasonography over a period of 11 months. Findings of ultrasonography and computed tomography of 28 patients in whom üreteral stones were confirmed by standart methods were comparedUreteral calculi were diagnosed in 28 of 41 patients. Ureteral stones could be demonstrated in 18 patients by ultrasonography and in 27 patients by computed tomography. Ultrasonography showed 64.3% sensitivity and 100% specificity in the diagnosis of ureterolithiasis; computed tomography showed 96.4% and 100%, respectively. Spiral computed tomography is superior to ultrasonography in the demonstration of ureteral calculi in patients with renal colic. But because of higher cost and higher radiation dose, it should be reserved for symptomatic cases in whom ultrasonography is non-diagnostic

Topics: Ureter, Calculi, Ultrasound, Computed tomography, Obstruction, Medicine (General), R5-920, Medicine, R, DOAJ:Medicine (General), DOAJ:Health Sciences
Publisher: Dicle University Medical School
Year: 2007
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