英语语法分析

Objective To evaluate the angiographic feature of hepatic vein obstruction.

目的评价肝静脉阻塞的血管造影表现。

Angiographic reconstructions of three-dimensional images were obtained before and after resection.

在切除前后获得血管造影立体像重建。

The option of combining open surgery and angiographic methods should be kept in mind, but there are no uniform guidelines.

外科处理结合血管造影术的选择需时刻记在心里，但是还没有同一的指导原则。