头颈部血管磁共振SNAP技术的应用与进展

Application and advances of magnetic resonance SNAP technique in craniocervical vessels

磁共振同步非对比剂血管成像和斑块内出血(simultaneous non-contrast angiography and intraplaque hemorrhage,SNAP)成像技术具有覆盖范围广、分辨率高、同时获得固定多对比图像集、扫描时间较短的优势,适用于病变范围较长且走行曲折的头颈部血管,为头颈动脉粥样硬化、动脉狭窄与动脉夹层等疾病的检查提供丰富的诊断信息,临床应用日益增多。本文对SNAP技术原理以及在头颈部血管病变的应用和进展予以综述。

Simultaneous non-contrast angiography and intraplaque hemorrhage(SNAP) imaging had the advantages of wide coverage,high resolution,intrinsically multi-contrast image sets and short scanning time.It was suitable for tortuous craniocervical vessels with long lesions,which provided rich diagnostic information for the examination of diseases such as atherosclerosis,arterial stenosis and arterial dissection.Its application is increasing in craniocervical artery imaging.This paper reviews technique principle,clinical applications and advances of SNAP technique in craniocervical artery.