Firstly, the expression of the image motion of each pixel was deduced when the camera was scroll imaging, and the relationship between scroll Angle and image motion velocity was established.
首先，推导了相机侧摆时焦平面各像元的像移速度求解公式，建立了侧摆角度与像移大小的一般关系式。
Two dimensional image was obtained by transesophageal echocardiography. The thickness, wave time and velocity were showed during atrial septal motion by omni directional M mode echocardiography (OME).
应用经食管超声心动图获得二维图像，全方向M型超声显示并测量房间隔运动时的厚度、波幅时间及速度。
Objective: to evaluate if the mitral annular systolic motion velocities measured by Doppler quantitative tissue velocity image (QTVI) correlated with left ventricular ejection fraction (LVEF).
目的：应用超声定量组织速度显像(QTVI)技术测定二尖瓣环运动速度，评价其是否与左室整体收缩功能指标左室射血分数(L VEF)相关。
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