多层螺旋CT血管成像技术在肺动脉栓塞中的应用价值

The application value of multi slice spiral CT angiography in evaluating pulmonary artery embolism

目的探讨多层螺旋CT血管成像技术在肺动脉栓塞中的应用价值。方法回顾分析11例被证实的在肺动脉栓塞患者,行血管造影(CTA)检查,后处理采用多平面重建(MPR)、曲面重建(CPR)、最大密度投影(MIP)及容积重建(VR)等多种后处理技术。结果肺动脉增强后的CT值显著高于栓子的CT值,同时,CT横断面图像结合多平面重建、曲面重建、最大密度投影和容积重建等处理清晰地显示了肺动脉栓塞的部位和栓子形态。结论利用多层螺旋CT血管成像技术可以清晰显示肺动脉的栓塞部位和血栓栓子的形态,对肺栓塞的诊断具有明显的技术优势和较高的临床价值。

Objective To explore the application value of multi slice spiral CT angiography in evaluating pulmonary artery embolism.Methods Data of 11 patients with pulmonary artery embolism were retrospectively analyzed,the contrast-enhanced SCT scans of the pulmonary arteries were performed.MPR,MIP and VR were performed simultaneously.Results The CT value of enhanced pulmonary artery was obviously higher than the thrombus,the position and morphology of embolus in pulmonary artery were clearly displayed in cross section CT pictures with MPR,CPR,MIP and VR.Conclusion Multi slice CT angiography can clearly show the position and morphology of embolus in pulmonary artery,which has obvious technique advantage and higher value in the diagnosis of pulmonary artery embolism.