摘要
目的分析应用双源CT双能量肺灌注成像评估急性肺栓塞患者病情程度及右心功能的可行性。方法回顾性分析本院2017年2月至2019年2月收治的60例急性肺栓塞患者的临床资料,观察双源CT检查平扫和增强扫描的影像特点,比较CTPA和DEPI诊断急性肺栓塞的诊断符合率及不同严重程度的急性肺栓塞的栓塞分数、灌注缺损分数、右、左心室短轴最大径比值(RV/LV)。结果60例患者中,纳入分析的肺段及肺段动脉共有602个。CTPA和DEPI对496个肺段的栓塞程度诊断一致,42个部分栓塞无灌注损伤;非严重组的栓塞分数、灌注缺损分数、RV/LV显著低于严重的栓塞分数、灌注缺损分数、RV/LV(P<0.05)。结论DSCT检查可清楚显示急性肺栓塞的影像学特点,DEPI可很好地反映肺血管灌注状态,在评估急性肺栓塞患者病情程度及右心功能有一定的可行性,结合患者临床资料可有效提高诊断准确率。
Objective To analyze the feasibility of dual-source CT dual-energy lung perfusion imaging in assessing the severity of disease and right heart function in patients with acute pulmonary embolism.Methods The clinical data of 60 patients with acute pulmonary embolism admitted to our hospital from February 2017 to February 2019 were retrospectively analyzed.The imaging features of dual-source CT plain and enhanced scans were observed.To compare the diagnostic accuracy of CTPA and DEPI in the diagnosis of acute pulmonary embolism.The embolization score,perfusion defect score,and maximum diameter ratio(RV/LV)of the right and left ventricular short axis were compared between different severity of acute pulmonary embolism.Results In the 60 patients,602 pulmonary segments and pulmonary artery were included to analyze.CTPA and DEPI were consistent in diagnosising degree of embolization in 496 lung segments,with 42 partial embolization without perfusion injury.The embolization score,perfusion defect score,and RV/LV in the non-severe group were significantly lower than those in the severe group(P<0.05).Conclusion DSCT examination can clearly show the imaging features of acute pulmonary embolism.DEPI can reflect the status of pulmonary vascular perfusion well.It is feasible to evaluate the degree of disease and right heart function in patients with acute pulmonary embolism.The patient's clinical data can be combined to effectively improve the diagnostic accuracy.
作者
万泽安
谈伍平
苗贵华
叶金善
WAN Ze-an;TAN Wu-ping;MIAO Gui-hua;YE Jin-shan(Department of Cardiology,Kunming Tongren Hospital,Kunming 650228,Yunnan Province,China;Department of Cardiology,Anning People's Hospital,Anning 650300,Yunnan Province,China)
出处
《中国CT和MRI杂志》
2021年第8期77-78,100,共3页
Chinese Journal of CT and MRI
关键词
双源CT
双能量灌注成像
急性肺栓塞
右心功能
Dual Source CT
Dual Energy Perfusion Imaging
Acute Pulmonary Embolism
Right Heart Function
