三维增强磁共振血管成像在下肢动脉闭塞性疾病诊断中的临床应用  

Clinical application of 3D CE MRA in diagnosis of peripheral artery occlusive diseases

作　　者：程凯亮[1] 来颖[1] 柳林[1] 刘云霞[1] 

机构地区：[1]吉林大学中日联谊医院放射线科,吉林长春130033

出　　处：《吉林大学学报（医学版）》2009年第6期1159-1162,共4页Journal of Jilin University：Medicine Edition

基　　金：吉林省科技厅科研基金资助课题(200505151)

摘　　要：目的:评价三维增强磁共振血管成像(3DCEMRA)在下肢动脉闭塞性疾病(PAOD)诊断中的临床价值。方法:接受手术治疗的PAOD患者103例(579段血管),术前全部行双下肢动脉3DCEMRA检查,将重建后图像与手术结果进行对比,评估该方法对下肢动脉狭窄或闭塞的显示情况。结果:103例患者579段血管,图像显示清晰,其中盆段206段,大腿段196段,小腿段177段,3DCEMRA诊断重度动脉狭窄及闭塞(狭窄度≥70%)的灵敏度和特异度分别为97.6%和95.4%,与手术结果符合率83.7%;按节段划分3DCEMRA对小腿段重度狭窄诊断的灵敏度最高(100%),对大腿段重度狭窄病变诊断的特异度最高(97%)。结论:3DCEMRA对不同程度血管狭窄和不同节段血管狭窄度分级的判定与手术结果具有良好的一致性,可用于指导PAOD的治疗。Objective To probe the value of clinical application of three dimensional contrast enhanced magnetic resonance angiography （3D CE MRA） for diagnosis of peripheral artery occlusive diseases （PAOD） and to assess its accuracy. Methods One hundred and three cases of PAOD received 3D CE MRA before operation. And 579 vascular segments were displayed. The diagnosis of 3D CE MRA before operation were compared with the results of vascular reconstruction surgeries of lower extremities. The image quality and how 3D CE MRA revealed the abnormal blood vessels were evaluated. Results Satisfactory images of the main arteries of the lower extremities were achieved by 3D CE MRA. In 579 vascular segments of 103 patients with PAOD,the sensitivity and specificity for detection of severe stenosis and occlusions were 97.6% and 95.4%,respectively. In 206 vascular segments of tibiofibula artery,the sensitivity was 100%. In 196 vascular segments of femoral artery,the specificity was 97%. Conclusion 3D CE MRA is accurate and reliable for determination of the degree of peripheral artery stenosis. The results of 3D CE MRA are concordant with that of operation.

关 键 词：磁共振血管造影术 动脉硬化 闭塞性 下肢 动脉 

分 类 号：R543.5[医药卫生—心血管疾病] R445.2[医药卫生—内科学]