应用解剖M-型超声心动图观察正常人心室壁运动幅度

目的解剖M-型超声心动图是一项超声定量测量的新技术,应用解剖M -型超声技术测量健康成人的心肌各节段运动幅度,为临床诊断提供参考依据.方法 30例健康志愿者.获取标准心尖两腔、长轴、四腔观,应用解剖M- 型超声技术定量测量心肌各节段的运动幅度.结果取样测量部位的成功率为各室壁的基底段和中段,同一室壁,基底段运动幅度>中段>心尖段.后壁基底段运动幅度>前间隔基底段,右室基底段运动幅度>侧壁基底段.结论应用解剖M-型超声测量方法,可以不受角度限制测量心室壁运动幅度.

Observating Wall Motion Amplitude of Normal Individuals on Anatomic M-mode Echocardiogram

Objective To measure the amplitudes of wall motion,positive and negative slopes on anatomic M-mode echocardiograms.Methods Standard apical two-chamber,four-chamber and long-axis views of 30 healthy volunteers were acquired and the wall motion amplitudes of each segment were measured.Results Of 630 segments,463 segments were measured satisfactorily(735%).The basal,middle segments of the IVS,the basal,middle segments of the anterior IVS and the middle segments of the posterior wall were all in normal distribution(each segment was measured in 30 patients,all with the successful rate of 100%).Conclusions With the help of anatomic M-mode,the wall motion amplitudes can be measured without the limitation of anglesThe amplitudes were decreasing from basal segments to apical segmentsAt the same time,the amplitudes of the basal segments of the posterior wall are greater than those of the anterior wall and the basal segments of the right ventricle are greater than those of the lateral wall