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AJR Am J Roentgenol. 1978 Aug;131(2):227-9.

Surgical and pathologic correlation of cholecystosonography and cholecystography.


To define the accuracy of varying ultrasonic patterns in the diagnosis of gallstones, the records of 145 patients with ultrasound examination of the gallbladder prior to cholecystectomy were reviewed. Three abnormal scan categories were established: category 1--shadowing opacities that move with gravity within the gallbladder lumen; category 2--nonvisualization of the gallbladder lumen; and category 3--nonshadowing opacities within the gallbladder lumen. The accuracy of these criteria for gallstone diagnosis was found to be 100%, 96%, and 61%, respectively. Overall accuracy was 96% for gallbladder disease, with a 4% false negative rate. Oral cholecystography demonstrated an accuracy of 93% in this series. A preoperative ultrasound diagnosis of gallstones should probably be limited to category 1 and 2 appearances only.

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