磁共振脉搏波传导速度法评价主动脉顺应性  

Evaluation of aorta′s compliance with pulse wave velocity by MRI

作　　者：郭皓[1] 杨达宽[2] 郭立[2] 王家平[2] 艾丽萍[2] 杨楠[2] 

机构地区：[1]昆明医学院附属甘美医院心内科,昆明650011 [2]昆明医学院第二附属医院放射科,昆明650101

出　　处：《放射学实践》2010年第10期1110-1112,共3页Radiologic Practice

摘　　要：目的:评价MRI脉搏波传导速度法在观察主动脉顺应性中的有效性。方法:对63例正常志愿者按年龄分组进行主动脉(升主动脉、胸主动脉、腹主动脉)MR相位对比电影法扫描,生成时间-速度曲线,并计算PWV。结果:不同长度测量的PWV无明显不同;随年龄增长,主动脉顺应性逐渐减低,PWV速度增快(r1=0.76、r2=0.79);MRPWV法可重复性高(r3=0.87、r4=0.92)。结论:MRIPWV法可作为观测主动脉顺应性较好的手段。Objective：To evaluate the aorta′s compliance with MRI PWV.Methods：Aortas （ascending aorta,thoracic aorta,abdominal aorta）of 63 normal volunteers with different ages were measured by phase-contrast cine MR scan.We got the time-velocity curves and calculated PWV.Results：There were no different PWV measured by different distances.With the age growing,aortic compliance reduced （r1=0.76,r2=0.79） and the PWV increased.The methods of MR PWV were highly repetitive （r=0.91）.Conclusion：MRI PWV can be used as a better means of observation for aortic compliance.

关 键 词：主动脉 顺应性 磁共振波谱学 脉搏 

分 类 号：R445.2[医药卫生—影像医学与核医学] R540.4[医药卫生—诊断学]