Jackson P C, Fraser J R, Wolinski A P, Wilde R P
Phys Med Biol. 1984 Nov;29(11):1377-84. doi: 10.1088/0031-9155/29/11/006.
The phase and amplitude images derived from multiple gated blood pool studies of the heart have been used to aid the delineation of the boundary of the left ventricle. The results of left ventricular ejection fraction (LVEF) using this method have been compared with those obtained using edge detection algorithms, dual region of interest techniques, and x-ray contrast ventriculography, in a series of patients with well documented left ventricular wall motion. The results indicate that the sole use of phase and amplitude images does not improve the correlation or accuracy of LVEF estimation in relation to those obtained by x-ray contrast ventriculography, and that the dual region of interest technique is likely to remain the preferred method.
源自心脏多门控血池研究的相位和幅度图像已被用于辅助勾勒左心室的边界。在一系列左心室壁运动记录良好的患者中，使用这种方法获得的左心室射血分数（LVEF）结果已与使用边缘检测算法、双感兴趣区技术和X线造影心室造影获得的结果进行了比较。结果表明，单独使用相位和幅度图像并不能提高LVEF估计与X线造影心室造影获得的结果之间的相关性或准确性，并且双感兴趣区技术可能仍然是首选方法。
