三维增强磁共振血管成像在主动脉夹层动脉瘤的诊断价值及准确性研究  

Clinical value and accuracy of three-dimensional contrast-enhanced MR angiography in diagnosis of aortic dissecting aneurysm

作　　者：侯鹏春 Hou Pengchun(Department of Radiology,First Affiliated Hospital of China Medical University,Liaoning 100011,China)

机构地区：[1]中国医科大学附属第一医院放射科,沈阳100011

出　　处：《中国药物与临床》2021年第2期206-208,共3页Chinese Remedies & Clinics

摘　　要：目的探讨三维增强磁共振(MR)血管成像(3D CE MRA)应用于主动脉夹层动脉瘤诊断的临床价值及准确性。方法选取2017年9月至2018年8月我院收治的疑似主动脉夹层动脉瘤的患者72例为研究对象,对所有入选患者分别进行3D CE MRA检查及彩色多普勒超声检查,将检查结果与数字减影血管造影(DSA)诊断结果进行对比,分析3D CE MRA检查对主动脉夹层动脉瘤特异度、灵敏度及准确性,同时分析2种方法对夹层血栓形成等的检出率。结果72例患者DSA诊断出主动脉夹层动脉瘤56例,彩色多普勒超声诊断出50例,真阳性例数45例,真阴性例数11例;3D CEMRA检查诊断出主动脉夹层动脉瘤54例,真阳性例数52例,真阴性例数14例;3D CE MRA检查诊断主动脉夹层动脉瘤的特异度、灵敏度及准确性明显高于彩色多普勒超声检查(P<0.05);3D CE MRA检查对夹层血栓形成、动脉壁钙化、主动脉破口数、累及分支血管数目检查情况均优于彩色多普勒超声检查(P<0.05)。结论3D CE MRA应用于主动脉夹层动脉瘤的诊断价值较高,且具有较高的准确性,值得临床推广。Objective To investigate the clinical value and accuracy of three-dimensional contrast-enhanced MR angiography(3D CE-MRA)in the diagnosis of aortic dissecting aneurysm.Methods Seventy-two patients with suspected aortic dissecting aneurysm admitted to our hospital between September 2017 and August 2018 were included as the subjects in the study.All patients underwent 3D CE-MRA and color Doppler ultrasound,respectively.The diagnostic results were compared with those of digital subtraction angiography(DSA),and the specificity,sensitivity and accuracy of 3D CE-MRA for aortic dissecting aneurysm were determined.At the same time,the detection rate of dissecting thrombus by the two methods was examined.Results In 72 cases,DSA,color Doppler ultrasound and 3D CE-MRA detected aortic dissecting aneurysm in 56,50(45 true positive and 11 true negative)and 54(52 true positive and 14 true negative)cases,respectively.The specificity,sensitivity and accuracy of 3D CE-MRA in the diagnosis of aortic dissecting aneurysm were significantly higher than those of color Doppler ultrasound(all P<0.05).The 3D CE-MRA performed better than color Doppler ultrasound in detecting the formation of dissecting thrombus,calcification of artery wall,number of aortic break and number of involved branch vessels(all P<0.05).Conclusion 3D CE-MRA shows high clinical value and accuracy in the diagnosis of aortic dissecting aneurysm,and therefore is worthwhile of widespread use in clinical practices.

关 键 词：主动脉夹层动脉瘤 三维增强MR血管成像 诊断价值 准确性 

分 类 号：R445.2[医药卫生—影像医学与核医学] R543.1[医药卫生—诊断学]