英语语法分析

Objective: to assess the value of ct cholecystography.

目的：探讨口服胆囊造影CT扫描的价值。

Methods Before spiral CT scanning, the preparation was similar to the conventional X-ray oral cholecystography.

方法螺旋CT扫描前准备类似于常规X线口服法胆囊造影。

Objective to evaluate ct cholecystography in diagnosing iso or hypo density calculi and small polypoid lesions of the gallbladder.

目的探讨胆囊造影CT对胆囊等或低密度结石、小息肉样病变的诊断价值。