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2. 发明授权

US5415171A Phase imaging and myocardial performance 失效
标题翻译：相位成像和心肌表现
公开(公告)号：US5415171A
公开(公告)日：1995-05-16
申请号：US104308
申请日：1993-08-09
申请人： Christiana Goh , Hewlett E. Melton, Jr.
发明人： Christiana Goh , Hewlett E. Melton, Jr.
IPC分类号： A61B5/055 , A61B8/08 , A61B8/00
CPC分类号： A61B8/08
摘要： A method and system for monitoring performance of a heart includes forming a time series of frames of echocardiographic data. The time series may be for a systolic interval, but longer intervals are also possible. The frames of the time series have sets of corresponding data points with respect to specific sites of a patient's heart. For each set of corresponding data points, a time domain signal as a function of a selected scalar is determined, thereby yielding a time domain signal which varies with frame-to-frame variations of the selected scalar. The scalar has a physiological significance to the contractile state or the motion of the myocardium. Mean squared speed, root mean squared speed, mean squared rate of signal change, integrated backscatter, correlation area, and echocardiographic signal data magnitude are suitable scalars. For each time domain signal, a phase angle is obtained to assign a pixel value to an image data point. The pixel values are utilized to generate either a gray-scale two-dimensional image or a time series of cardiac performance.
摘要翻译：用于监测心脏性能的方法和系统包括形成超声心动图数据的时间序列。时间序列可以是收缩期间隔，但是更长的间隔也是可能的。时间序列的帧具有相对于患者心脏的特定部位的相应数据点的集合。对于每组对应的数据点，确定作为所选标量的函数的时域信号，从而产生随所选标量的帧到帧变化而变化的时域信号。标量对收缩状态或心肌的运动具有生理意义。均方速度，均方根速度，信号变化的均方率，积分反向散射，相关面积和超声心动图信号数据幅度是适合的标量。对于每个时域信号，获得相位角以将像素值分配给图像数据点。像素值用于生成灰度二维图像或心脏性能的时间序列。

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