英语语法分析

The DSA is still the golden standard for diagnoses of arterial stenoses.

其中DSA是动脉狭窄诊断的金标准。

Purpose: To evaluate the ultrasonographic diagnosis of arterial stenoses of the lower limb.

目的：评价超声对下肢动脉狭窄性疾病的诊断价值。

However, growing numbers of patients with diffuse stenoses are not amenable to PCI and CABG.

但是，针对弥漫性血管病变患者，上述两种治疗方法受到了很大的限制。