肺动脉栓塞的64层螺旋CT血管成像技术分析

The Technique Analysis of 64 Slice Spiral CT Pulmonary Angiography in Evaluating Pulmonary Embolism

目的从技术上探讨64层螺旋CT肺动脉造影对肺栓塞的诊断的价值。方法对62例临床疑诊肺栓塞的患者行64排螺旋CT肺动脉造影检查,采用最大密度投影(MIP)、多平面重建(MPR)、曲面重建(CPR)、容积漫游(VR)及仿真内窥镜等后处理技术,分析所获得的相关CT资料。结果64排多层螺旋CT肺动脉造影可较准确、清晰、全面地显示24例累及肺动脉及其分支共152处栓子的位置、形态、范围和程度。结论64排多层螺旋CT肺动脉造影是肺栓塞及时准确无创的诊断方法,是临床诊断肺栓塞的首选筛查办法,对肺动脉栓塞的诊断具有明显的技术优势。

Objective To evaluate the application of 64 slice spiral computer tomography pulmonary angiography in the diagnosis of pulmonary embolism （PE） for pulmonary embolism from technical aspects. Methods 62 suspected pulmonary embolism （PE） patients were performed 64 slice spiral CT pulmonary artery angiography , the results of CTPA were analyzed. Maximum intensity projection （ MIP）, multiplanar reformation （ MPR）, curved planar reformation （CPR） ,volume rendering （VR） and virtual endoscopy（VE） were applied. Results CTA could distinctly display 152 pulmonary emboli of 24 patients including the location, shape, and scope of PE. Conclusion 64 slice spiral CT pulmonary angiography is a fast and accurate and non -invasive diagnostic method for PE, it may be the chief diagnostic method , having obvious technique advantage in the diagnosis of PE.