双源CT双能量成像对周围型肺动脉栓塞的诊断价值

发布时间：2018-06-22 03:16

本文选题：双源CT + 双能量　；参考：《临床放射学杂志》2017年05期

【摘要】：目的探讨双源CT双能量肺动脉成像Lung PBV、Lung Vessels软件对周围型肺动脉栓塞(PE)的诊断价值。方法对临床怀疑PE的143例患者行Flash双源CT双能量肺动脉成像,在后处理工作站利用双能量软件Lung PBV和Lung Vessels对其中的111例患者进行彩色编码成像,得到Lung PBV图及Lung Vessels图。单独应用CTPA及CTPA分别结合Lung PBV、Lung Vessels软件对肺动脉有无栓塞以及栓塞的部位、数目进行诊断并记录,比较单独应用CTPA及CTPA分别结合Lung PBV、Lung Vessels软件对全部栓子及不同部位栓子的检出率。以P0.05为差异有统计学意义。结果综合临床资料及CT检查,最后确诊PE 41例。单独应用CTPA发现38例(34.2%),CTPA联合双能量软件后发现41例(36.9%);共检出栓子150个,包括段动脉58个,亚段动脉64个,亚段以下动脉28个,其中2个亚段以下栓塞Lung PBV、Lung Vessels图清晰显示楔形低灌注及红色伪彩色标记的栓子而CTPA未见异常。单独应用CTPA对全部栓子、段动脉栓子、亚段动脉栓子及亚段以下动脉栓子的检出率分别为82%、98.3%、84.4%、42.9%,CTPA联合Lung PBV软件分别为96.7%、100%、96.9%、89.3%,CTPA联合Lung Vessels软件分别为98%、100%、98.4%、92.9%,CTPA联合应用Lung PBV、Lung Vessels软件对所有栓子、亚段动脉栓子及亚段以下动脉栓子的检出率明显高于单独应用CTPA(P0.05),对肺段动脉栓子的检出CTPA单独应用与联合应用Lung PBV、Lung Vessels软件差异无统计学意义(P0.05)。结论双源CT双能量肺动脉成像中采用CTPA联合Lung PBV、Lung Vessels软件可以提高周围型PE检出率,特别是亚段及亚段以下PE。
[Abstract]:Objective to evaluate the diagnostic value of double source CT double energy pulmonary artery imaging (PBV lung Vessels) in peripheral pulmonary embolism (PE). Methods A total of 143 patients with suspected PE were examined by Flash dual-source CT dual-energy pulmonary artery imaging. The lung PBV and lung vessels were obtained by color coded imaging in 111 patients with lung PBV and lung Vessels on the post processing workstation. CTPA and CTPA combined with Lung PBVVessels software were used to diagnose and record the location and number of pulmonary embolism and the detection rate of all emboli and different sites of embolism were compared between CTPA and CTPA combined with Lung Lung Vessels software. P0.05 as the difference was statistically significant. Results according to the clinical data and CT examination, 41 cases of PE were diagnosed. 41 cases (36.9%) were found by CTPA alone, including 58 segmental arteries, 64 subsegmental arteries, 28 subsegmental arteries and 28 subsegmental arteries. Two of them showed clearly wedge-shaped hypoperfusion and red pseudocolor labeled embolus, but CTPA was not abnormal. The detectable rate of CTPA for all emboli, segmental artery emboli, subsegmental artery emboli and subsegmental arterial emboli were 82. 3% and 98. 3% respectively. The detection rates of CTPA combined with lung PBV software were 96. 7 and 100. 9%, respectively. CTPA and lung software were 98. 100%, 98. 4% and 92. 929%. The detection rate of subsegmental arterial emboli and subsegmental arterial emboli was significantly higher than that of CTPA alone (P0.05). Conclusion CTPA combined with Lung Lung Vessels software can improve the detection rate of peripheral PE, especially in subsegmental and subsegmental Pe.
【作者单位】：遵义医学院附属医院放射科;
【基金】：国家自然科学基金项目(编号:81460265)
【分类号】：R563.5;R816.4

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