AIM:CT virtual endoscopy has been used in the study ofvarious organs of body including the biliary tract,however,CT virtual endoseopy in diagnosis of gallbladder polypshas not yet been reported.This study was to evaluate thediagnostic value of CT virtual endoscopy in polyps of thegallbladder.METHODS:Thirty-two cases of gallbladder polyps wereexamined by CT virtual endoscopy,ultrasound,CT scan withoral biliary contrast separately and confirmed by operationand pathology.CT biliary cystoscopic findings were analyzedand compared with those of ultrasound and CT scan withoral biliary contrast,and evaluated in comparison withoperative and pathologic findings in all cases.RESULTS:The detection rate of gallbladder polyps was93.8%(90/96),96.9%(93/96)and 79.2%(76/96)for CTcystoscopy,ultrasound and CT scan with oral contrast,respectively.CT biliary cystoscopy corresponded well withultrasound as well as pathology in demonstrating thelocation,size and configuration of polyps.CT endoscopywas superior to ultrasound in viewing the polyps in a moreprecise way,3 dimensionally from any angle in space,andshowing the surface in details.CT biliary cystoscopy wasalso superior to CT scan with oral biliary contrast in termsof observation of the base of polyps for the presence of apedicle,detection rates as well as image quality.Thesmallest polyp detected by CT biliary cystoscopy wasmeasured 1.5 mm×2.2 mm×2.5 mm.CONCLUSION:CT biliary cystoscopy is a non-invasive andaccurate technique for diagnosis and management ofgallbladder polyps. AIM: CT virtual endoscopy has been used in the study ofvarious organs of body including the biliary tract, however, CT virtual endoseopy in diagnosis of gallbladder polypshas not yet been reported. This study was to evaluate the diagnostic value of CT virtual endoscopy in polyps of the gallbladder .METHODS: Thirty-two cases of gallbladder polyps wereexamined by CT virtual endoscopy, ultrasound, CT scan withoral biliary contrast separately and confirmed by operation and pathology. CT biliary cystoscopic findings were analyzed and compared with those of ultrasound and CT scan withoral biliary contrast, and that Results of pathologic findings in all cases. RESULTS: The detection rate of gallbladder polyps was 93.8% (90/96), 96.9% (93/96) and 79.2% (76/96) for CTcystoscopy, ultrasound and CT scan with oral contrast, respectively. CT biliary cystoscopy corresponded well withultrasound as well as pathology in demonstrating the location, size and configuration of polyps. CT endoscopy superior to ultrasound in viewing the polyps in a more precise way, 3 dimensionally from any angle in space, and showing the surface in details. CT biliary cystoscopy was also superior to CT scan with oral biliary contrast in terms of observation of the base of polyps for the presence of apedicle , detection rates as well as image quality. Purely polyp detected by CT biliary cystoscopy was measured 1.5 mm × 2.2 mm × 2.5 mm. CONCLUSION: CT biliary cystoscopy is a non-invasive andaccurate technique for diagnosis and management of gallbladder polyps.