Results The rates of biliary duct abnormality, preoperative diagnosis change, preoperative inexpectant disease finding, bile injury and residual stone were 3.5%, 4.4%, 2.4% and 0%, respectively.
结果胆道畸形率3 .5 % ，术前诊断改变率4.4% ，术前未预期疾病发现率2 .4% ，胆道损伤率及残留结石率为零。
youdao