目的 探讨128层螺旋CT血管成像 技术对肺动脉栓塞诊断的价值。方法 对 30例临床怀疑肺动脉栓塞的患者行MSCT 肺动脉成像扫描检查，应用多平面重建 (MPR)、曲面重建(CPR)、容积再现(VR)、 最大密度投影(MIP)以及仿真内镜(CTVE) 等后处理技术，分析获得的CT图像。结果 128层MSCT肺动脉成像能准确、清晰、全 面地显示肺动脉及1、2、3级分支的栓子 的位置、形态、范围和程度。结论 128层 MSCT血管成像技术是肺动脉栓塞及时、无 创的诊断方法，是肺动脉栓塞的首选检查 方法和技术，对肺动脉栓塞的诊断具有明 显的技术优势。

Objective Investigate the128 slice spiral CT angiography of pulmonary embolism diagnosis value. Methods 30 case of clinical patients with suspected pulmonary embolism, CT pulmonary artery angiography, application of multiplanar reformation(MPR), curved planar reformation(CPR), volume rendering(VR), maximum intensity projection(MIP) and CT virtual endoscopy(CTVE) post-processing, analysis CT images. Results 128 slice MSCT pulmonary artery angiography technology is display the pulmonary artery and accurate, clear and comprehensive grade 1,2,3 branch of the location, shape, range and degree of embolism. Conclusion 128 slice MSCT angiography technology is a pulmonary embolism what noninvasive diagnostic method in time, is the first choice for the pulmonary embolism and technologies, has obvious technical advantage to the diagnosis of pulmonary embolism.