锁骨下动脉和上肢动脉狭窄及闭塞MSCTA检查和评价

目的：探讨锁骨下上肢动脉狭窄及闭塞的CT血管成像（CTA）检查技术及临床价值。方法：36例锁骨下-上肢动脉狭窄及闭塞的患者行MSCTA检查，分析其检查技术、病变征象及CT诊断价值。结果：36例中血栓形成11例、动脉硬化13例、大动脉炎12例。36例均成功完成CTA检查，靶血管显示清楚。曲面重组（CPR）及横轴面图像可同时观察血管腔及管壁，急性血栓6例，在横轴面及CPR图像上密度低于亚急性和慢性血栓（5例）。最大密度投影（MIP）显示侧支血管最佳（23例），13例动脉硬化横轴面及容积再现（VR）图像均显示血管壁钙化。CTA还能显示13例动脉硬化及12例大动脉炎患者其他部位的血管病变。结论：锁骨下-上肢动脉MSCTA可清楚显示动脉狭窄或闭塞的部位及特征，应作为本病的常规检查方法，多种后处理技术的联合使用对诊断也有重要作用。

Examination of Subclavian and Upper Extremity Artery Stenosis and Occlusion:Technique and Clinical Value of Multi-slice CT Angiography

Objective:To explore the technique and clinical value of multi-slice CT angiography(CTA) in the examination of stenosis and occlusion diseases of upper extremity arteries.Methods:CTA was performed in 36 patients with stenosis and occlusion diseases of upper extremity arteries.The technique,CTA features and the diagnostic value were retrospectively analyzed.Results:Of the 36 patients,eleven cases had thrombosis,thirteen cases had arteriosclerosis,and twelve cases had Takayasu arteritis,CTA was performed succ...