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1·Observing markers included: (a) degree of cholangiectasis;

观察指标包括：①胆管扩张程度；

2·Objective To study the value of helical CT in diagnosing congenital cholangiectasis.

目的探讨螺旋CT在先天性胆管扩张症的诊断价值。

3·Results After the operation, the obstructive cholangiectasis had been found uin 36 cases.

结果3 6例胆囊切除术后患者探及梗阻性胆管扩张，手术证实诊断符合。