磁共振脉搏波传导速度法评价原发性高血压患者的主动脉顺应性

Application of pulse wave velocity measurements by MRI in the evaluation of aortic compliance in essential hypertension

目的:评价MRI脉搏波传导速度(PWV)法在观察高血压患者主动脉顺应性变化中的有效性。方法:对43例高血压患者和31例正常志愿者进行升主动脉起始部和腹主动脉远端MR相位对比电影法扫描,生成时间-速度曲线,并计算PWV。结果:高血压组PWV较正常人增快,主动脉顺应性降低;MRI PWV法可重复性高(r1=0.90、r2=0.85)。结论:MRI PWV法可作为监测高血压主动脉顺应性变化的手段。

Objective： To evaluate aortic compliance in essential hypertension By MRI pulse wave velocity （PWV）. Meth ods： Forty three patients with essential hypertension and 31 normal volunteers（ascending aorta, al）（lominal aorta） were measured bv MR cine phase e（mtrast. We got the time-velocity curves and PWV. Results： the PWV of essential hypertension is ｜＇aster than normal volunteers. There were high repetiti（m （rl=0.90, r2=0.85） measured with method of MRI PWV. Conclusion： MRI PWV can be used as a better means to observe the changes of aortic compliance.