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目的:探讨螺旋CT多平面重建技术对肺动脉栓塞(PE)的诊断价值。方法:回顾性分析经螺旋CT肺动脉造影确诊的PE患者27例的临床资料,在横断面容积扫描数据基础上,应用多平面重建(MPR)技术进行多方向、多角度、多平面重建,可以任意角度、任意方位显示肺血管的解剖结构及病变形态。对肺动脉主干及其分支栓塞的血管显示进行分析及评价。结果:对27例患者CT多平面重建图像进行分析,统计受累肺动脉及分支共84支,其中左右肺动脉主干栓塞12支,叶肺动脉栓塞22支,段肺动脉栓塞34支,亚段肺动脉栓塞13支,5级分支栓塞3支;完全性栓塞8支,部分性栓塞76支。结论:多层螺旋CT的多平面重建图像可清晰显示肺动脉主干及其5级分支小肺动脉内栓子,定位准确且无创伤性,可成为临床诊断PE的首选检查方法。
Objective: To investigate the diagnostic value of spiral CT multiplanar reconstruction in pulmonary embolism (PE). Methods: The clinical data of 27 patients with PE diagnosed by spiral CT pulmonary angiography were retrospectively analyzed. Based on the cross-sectional volume scan data, multi-planar reconstruction (MPR) technique was used to perform multi-directional, multi-angle and multiplanar reconstruction. Angle, any position shows the anatomy of pulmonary vessels and lesion morphology. The pulmonary artery trunk and its emboli were analyzed and evaluated. Results: 27 cases of CT multiplanar reconstruction images were analyzed, the statistics involved a total of 84 pulmonary arteries and branches, including the left and right pulmonary artery embolization 12, pulmonary embolism 22, paragraph pulmonary artery embolization 34, sub-pulmonary embolism 13, 5 branches embolization 3; complete embolism 8, 76 partial embolization. Conclusion: The multiplanar reconstruction images of MSCT can clearly show the pulmonary artery trunk and its 5-branch small pulmonary artery embolus with accurate and noninvasive positioning, which may be the first choice for the clinical diagnosis of PE.