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[Agency] AHRQ [Project Title] RCT of US versus CT for Patients in the ED with Suspected Renal Colic [Institution] UNIVERSITY OF CALIFORNIA SAN FRANCISCO [Amount] $0 [Summary] This study compares different imaging strategies for patients seen in large emergency departments with symptoms concerning for urolithiasis (kidney stones). The study proposes a multicenter, randomized controlled trial of ultrasonography compared with computed tomography for the evaluation of patients with suspected kidney stones. The study will enroll patients at 10 large urban Emergency Departments (ED) and patients will be randomized to one of three arms: 1) ultrasonography in the ED, 2) ultrasonography in radiology, or 3) computed tomography in radiology. The study will then collect precise and unbiased data on a comprehensive range of outcomes that will allow assessment of effectiveness, safety, accuracy and cost between patients randomized to one of the three groups. Taken together, these measures are intended to provide the basis for a valid comparison of imaging of patients with suspected urolithiasis seen in the ED. The results of this trial could lead to a change in clinical practice that is associated with both improved patient outcomes and reduced cost. [Completion/ Closing Date] 10/02/2010 [Link] link [Category] 
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