Retrospective Study
Copyright ©The Author(s) 2015.
World J Radiol. Apr 28, 2015; 7(4): 70-78
Published online Apr 28, 2015. doi: 10.4329/wjr.v7.i4.70
Table 1 Criteria for stratifying risk for choledocholithiasis
Age > 55 yr
Evidence/suspicion of calculi at US
Choledocus larger than 6 mm at US (in patients having gallbladder)
Conjugated bilirubin higher than 51 micromoles/L
Persistence of cholestasis 72 h after the acute episode
All criteria present: Biliary tree lithiasis probability > 90%
All but one criteria: Biliary tree lithiasis probability about 20%