双能量CT肺动脉造影中Lung Vessels软件诊断肺动脉栓塞

发布时间：2018-03-04 19:25

本文选题：体层摄影术　切入点：X线计算机　出处：《中国医学影像技术》2014年12期 　论文类型：期刊论文

【摘要】：目的评价双能量CT肺动脉造影(DE-CTPA)中采用Lung Vessels软件诊断肺动脉栓塞(PE)的价值。方法收集接受DE-CTPA扫描的可疑PE患者49例,采用Lung Vessels软件处理图像,记录病变血管的位置及数目,以CTPA结合临床作为诊断PE的金标准,按患者、段动脉及亚段动脉为单位计算Lung Vessels诊断PE的敏感度、特异度、阳性预测值及阴性预测值。结果 CTPA诊断PE患者29例,栓塞动脉共188支,包括段动脉138支,亚段动脉50支。分别以患者、段动脉及亚段动脉为单位,Lung Vessels诊断PE敏感度、特异度、阳性预测值、阴性预测值为96.55%(28/29)、45.00%(9/20)、71.79%(28/39)、90.00%(9/10),65.94%(91/138)、80.38%(598/744)、38.40%(91/237)、92.71%(598/645)和64.00%(32/50)、92.24%(1581/1714)、19.39%(32/165)、98.87%(1581/1599)。结论 DE-CTPA中采用Lung Vessels软件可直观显示肺血管,有助于提高对PE、尤其是段及亚段PE的诊断效能,具有潜在应用前景。
[Abstract]:Objective to evaluate the value of Lung Vessels software in the diagnosis of pulmonary embolism (PE) in DE-CTPA.Methods 49 patients with suspected PE underwent DE-CTPA scan were collected, and the location and number of diseased vessels were recorded by Lung Vessels software. The sensitivity, specificity, positive predictive value and negative predictive value of Lung Vessels in the diagnosis of PE were calculated according to patient, segmental artery and subsegmental artery. Results 29 cases of PE were diagnosed by CTPA. There were 188 embolized arteries, including 138 segmental arteries and 50 subsegmental arteries. The sensitivity, specificity, positive predictive value of PE were determined by Vessels in patients, segmental arteries and subsegmental arteries, respectively. The negative predictive value was 96.5555 / 28 / 29 / 45.00 / 9 / 20 / 71.79 / 28 / 39 / 90.009 / 91065.94 / 91065.94 / 91065.94 / 91065.94 / 91065.94 / 91.1380.380.388.88 / 744 / 38.40792.71b / 59 / 645) and 64.00 / 32 / 24 / 50 / 50 / 795 / 79.39 / 79 / 79 ~ 19.39 / 39 / 39 / 39 / 39. Conclusion the use of Lung Vessels software in DE-CTPA can directly display pulmonary blood vessels and help to improve the diagnosis of PEP, especially in PE and its subsections, and has potential application prospects.
【作者单位】：昆明医科大学第一附属医院医学影像科;
【分类号】：R563.5;R816.41

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