肺动脉栓塞是一种常见的心血管疾病,其临床症状和体征缺乏特异性,确诊有赖于影像学检查。多层螺旋CT扫描速度快、安全、准确、简单、经济,已成为临床诊断肺动脉栓塞的主要影像学检查方法。本文着重探讨多层螺旋CT血管成像在诊断肺动脉栓塞时的扫描方法、影像征象、各种图像后处理技术的应用效果,以及与其他影像技术比较时的优缺点。 Pulmonary embolism is a common cardiovascular disease, the clinical symptoms and signs of the lack of specificity, diagnosis depends on the imaging examination. Multi-slice spiral CT scanning speed, safe, accurate, simple and economical, has become the main diagnostic imaging of pulmonary embolism method. This article focuses on the multi-slice spiral CT angiography in the diagnosis of pulmonary embolism scanning method, image signs, a variety of image post-processing techniques, as well as the advantages and disadvantages compared with other imaging techniques.