英语语法分析

Objective: To evaluate the usefulness of low-field MRI in diagnosing intradural extramedullary tumors in the spinal canal.

目的探讨低场强MRI对椎管内髓外硬膜下肿瘤的临床诊断价值。

Objective. To characterize the role of indocyanine-green videography in the intraoperative localization of intradural spinal tumors.

目的：本文旨在研究吲哚青绿成像在硬膜内脊髓肿瘤术中定位中的作用。

There are several intradural extramedullary enhancing nodules posterior to the spinal cord seen best at the level of C2 and at L4-S1.

在脊髓后方髓外硬膜下可见多个强化的结节，主要见于C2及L4-S1椎体平面。