Can computed tomography with coronal reconstruction improve the diagnosis of choledocholithiasis?

Journal of Gastroenterology and Hepatology
Chih-Wei TsengShou-Dong Lee

Abstract

Many technical developments of computed tomography (CT) made in recent years have improved imaging quality. However, the diagnostic efficacy of CT with coronal reconstruction for choledocholithiasis remains uncertain. This study aimed to investigate if CT with coronal reconstruction can aid in the diagnosis of choledocholithiasis. Two hundred and sixty-six patients with clinically suspected choledocholithiasis undergoing abdominal CT before endoscopic retrograde cholangiopancreatography were recruited. Among them, 163 patients confirmed with choledocholithiasis were divided into three groups: group 1, 92 patients undergoing CT using 5-mm thick sections with coronal reconstruction; group 2, 32 patients undergoing CT using 5-mm thick sections without coronal reconstruction; and group 3, 39 patients undergoing CT using 7-mm thick sections without coronal reconstruction. The diagnostic rate of CT for choledocholithiasis, the stone size and biochemical data among the three groups were analyzed. The sensitivity and specificity of CT in diagnosing choledocholithiasis were 77.3% and 72.8%. There was no significant difference of CT diagnostic rate among the three groups (75.0%, 81.2% and 79.5%, respectively). The diameter of common bile...Continue Reading

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