多层螺旋CT血管成像在肺动脉栓塞诊断中的应用
[摘要] 目的：探讨多层螺旋CT血管成像（MSCTPA）技术在肺动脉栓塞（PE）中的应用价值。方法：收集16排螺旋 CT 诊断肺动脉栓塞患者18例，图像后处理采用最大密度投影（MIP)、多平面重组（MPR）、容积再现（VR）等方法显示肺动脉并分析其表现。结果：18例PE患者中，左右肺动脉栓塞9支，叶肺动脉栓塞27支，段肺动脉栓塞98支，亚段肺动脉栓塞64支。PE的直接征象为肺动脉充盈缺损，其中，中心型缺损46支，可见'悬浮征“或'轨道征“，环壁缺损型42支，附壁缺损型74支，完全性阻塞36支。PE的间接征象有肺梗死灶4例，局限性肺纹理稀疏12例，马赛克征6例，肺动脉高压8例，两侧胸腔积液3例，心包少量积液2例。结论：MSCTPA可以清晰显示肺动脉的栓塞部位和血栓栓子的形态，应该作为确诊PE 的主要检查方法。
[关键词] 肺动脉栓塞；多层螺旋CT；肺动脉血管成像
[中图分类号] R563.5；R814.42 [文献标识码] B [文章编号] 1673-7210（2011）11（a）-116-03
The application value of multi-slice spiral CT pulmonary angiography in diagnosis of pulmonary embolism
YANG Jian1, XU Chengzhi2, LIU Biao1, LI Junqiang1, WU Junhong1
1.Department of Radiology, the Eighth Affiliated Hospital of Guangxi Medical University (the People"s Hospital of Guigang City), Guangxi Zhuang Autonomous Region, Guigang537100, China; 2.Department of Radiology, the Seventh People"s Hospital of Nanning City, Guangxi Zhuang Autonomous Region, Nanning530012, China
[Abstract] Objective: To discuss the application value of Multi-slice spiral CT pulmonary artery (MSCTPA) technology in diagnosis of pulmonary embolism (PE). Methods: 18 cases of patients who were diagnosed with PE by 16-slice spiral CT were collected. The images were rebuilt in the ways of MIP, MPR and VR displaying systems and the expressions were analyzed. Results: In 18 cases of PE patients, 9 branch were diagnosed with around PE, 27 branch were diagnosed with lobe PE, 98 branch were diagnosed with segmental PE, and 64 branc...
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