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[目的]研究多排螺旋CT肺动脉造影在临床疑似肺栓塞患者诊断中的应用价值。[方法]对86例临床疑似或诊断肺动脉栓塞的患者行对比剂增强64排螺旋CT肺动脉造影扫描,在高分辨横轴位图像基础上,进行多层面(MPR)和最大密度投影(MIP)重建,对中央、叶、段、段间的肺血管的显示进行分析和评价。[结果]所有叶肺动脉均优化显示;8支段肺动脉为一般显示;42支段间肺动脉显示一般,15支段间肺动脉显示不清。86例患者中,28例显示明确的肺动脉血栓,其中21例显示存在段间肺动脉血栓,横轴位图像上甚至可以观察到更为细小(5级甚至以下)的肺动脉血栓。[结论]对比剂增强64排螺旋CT肺动脉造影技术作为一项诊断或排除疑似PE的工具,安全、简便、可行且经济。
[Objective] To investigate the value of multislice helical CT pulmonary angiography in the diagnosis of patients with suspected pulmonary embolism. [Methods] Totally 86 patients with suspected or diagnosed pulmonary embolism were treated with contrast-enhanced 64-slice spiral CT pulmonary angiography. Based on high-resolution horizontal axial images, multi-level MPR and MIP reconstruction , The central, leaf, paragraph, paragraph of pulmonary vascular display analysis and evaluation. [Results] All lobes of pulmonary arteries were optimized. Eight pulmonary arteries were generally displayed. The pulmonary arteries of 42 arteries showed normal and the pulmonary arteries of 15 arteries showed unclear. Of the 86 patients, 28 showed clear pulmonary thromboembolism, 21 of them showed presence of interstitial pulmonary thromboembolism, and even smaller (less than 5) pulmonary thrombi were observed on the horizontal axis. [Conclusion] Contrast-enhanced 64-slice spiral CT pulmonary angiography is safe, simple, feasible and economical as a tool to diagnose or exclude suspected PE.