英语语法分析

Objective To study the spiral CT features of pancreatogenic segmental occlusion of portal system (PSOPS).

目的探讨胰源性门静脉系节段性阻塞（PSOPS）的CT征象。

Objective To explore the cause of disease, clinical characteristic and diagnosis and treatment of pancreatogenic segmental portal hypertension.

目的探讨胰源性区域性门脉高压症的病因、临床特点及诊治体会。