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双源CT双能量肺灌注成像技术在诊断急性肺动脉栓塞中的价值

材料写作网    时间: 2021-09-02 04:07:19     阅读:次     手机站

【摘要】 目的: 探讨双源CT 肺灌注成像(DEPI) 技术诊断急性肺动脉栓塞的价值。方法: 11 例急性肺动脉栓塞患者应用双源CT 进行肺动脉成像(CTPA) 扫描, 所得扫描图像经采用Lung PBV 软件处理得到CTPA、DEPI图像及两种能量成像的融合图像, 将CTPA 上所示肺动脉内栓子的数量、位置与相应肺叶、肺段、肺亚段组织灌注状态相对照。结果: CTPA 共检出16个肺叶、36肺段内有栓子存在。在肺叶基础上, DEPI 检出灌注缺损或降低14 个, 符合率为87.5.%; 在肺段基础上, DEPI 检出30 个, 符合率为83.3%。结论: DEPI 与CTPA诊断PE 具有较好的一致性。 两者联合起来有助于提高急性肺动脉栓塞诊断率。

【关键词】 双源CT; 肺灌注扫描; 血管造影术; 肺动脉栓塞

【Abstract】 Objective:puepose: to assess the diagnostic value of dual source CT dual energy per fusion imaging (DEPI) for pulmonary embolism. Methods: eleven consecutive patients with acute pulmonary embolism underwent dual energy imaging , the images were evaluated with lung PBV software on the workstation, after CT pulmonary angiography (CTPA) , DEPI and fusion image were obtained. The number and location of PE in DEP I and CTPA were recorded and analyzed. Results: sixteen branches and thirty-six subbranches were involved with pulmonary embolism . The 87.5.%,83.3% agreement between DEPI and CTPA were showed in the levels of lung and partial lung respectively. Conclusion:PE was diagnosis by t between the CTPA and DEPI is same.The combination of CTPA and DEPI will offer more information for diagnosis of the acute pulmonary embolism.

【Key words】 dual source CT; lung perfusion scan; angiography ; pulmonary embolism

【中图分类号】R445.9 【文献标识码】A 【文章编号】1005-0019(2014)03-0013-02

近年来, 肺动脉栓塞(pulmonary embolism,PE) 已经逐步成为常见的急危重症之一, CT 肺动脉成像(CT pulmonary angiography, CTPA) 由于准确度较高,...



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