为了探讨多层螺旋CT对肺动脉栓塞(PE)的诊断价值,回顾性分析32例临床确诊为PE患者的CT肺动脉成像(CTAP)资料,并用最大密度投影(MIP)、多平面重建(MPR)及PE Dection 1.0软件等显示肺动脉主干、肺叶、肺段及亚段的栓塞。32例PE患者共检出亚段以上受累动脉128支,CTAP的直接征象为栓子形成的各种充盈缺损。间接征象包括局限性肺纹理稀疏、肺内实变影、肺动脉扩张、右心增大及胸腔积液。初步研究结果提示,CT-PA能清楚地显示PE的直接与间接征象,是诊断PE的首选检查方法。 To investigate the value of multislice spiral CT in the diagnosis of pulmonary embolism (PE), the CT pulmonary angiography (CTAP) data of 32 patients with PE were retrospectively analyzed. The maximal density projection (MIP), multiplanar reconstruction PE Dection 1.0 software shows the main pulmonary artery, pulmonary lobes, pulmonary segments and sub-embolization. A total of 128 affected PEs were detected in 32 patients with PE, and the direct signs of CTAP were various filling defects formed by emboli. Indirect signs include limited sparse lungs, real lung shadow, pulmonary dilation, right ventricular enlargement and pleural effusion. Preliminary results suggest that, CT-PA can clearly show the direct and indirect signs of PE, PE is the preferred method of diagnosis.