Methods Left ventricular stroke volume (LVSV) in 36 healthy volunteers were measured by RT-3PE, M-mode Teichholz, two-dimensional echocardiography (2DE) simpson method and the product of aortic flow Doppler spectrum integral and aortic valvular area.

• 方法应用RT-3PE测量36例正常人的左室每搏量(LVSV),并分别与M型Teichholz法、二维超声心动图Simpson法、多普勒主动脉瓣环血流量法所测的LVSV进行比较。