Eiho S, Kuwahara M, Asada N
Med Prog Technol. 1987;12(1-2):101-15. doi: 10.1007/978-94-009-3361-3_10.
Left ventricular image processing methods of x-ray cineangiocardiograms and ultrasound echocardiograms are discussed. 3-D reconstruction methods of the left ventricle from ultrasound echocardiograms and magnetic resonance images are also discussed. Boundary detection of the left ventricle and the quantitative analysis of the left ventricular function and wall motion are discussed. To reconstruct 3-D shapes, we need several cross sectional shapes or silhouettes of the left ventricle. Several cross sectional echo images of apical long axis view are taken by changing the angles of rotation of the probe of echo transducer around its axis. Gated multi-phase MRI method is used to obtain each 2 cross sectional images in transverse, coronal and sagittal directions. Some results of 3-D shapes of the left ventricle and myocardium reconstructed are shown and 3-D functional images which give us regional functions of the left ventricular wall on three dimensional shape are shown.
讨论了X射线电影心血管造影和超声心动图的左心室图像处理方法。还讨论了从超声心动图和磁共振图像重建左心室的三维方法。讨论了左心室的边界检测以及左心室功能和壁运动的定量分析。为了重建三维形状，我们需要左心室的几个横截面形状或轮廓。通过改变超声换能器探头围绕其轴的旋转角度，获取心尖长轴视图的几个横截面回声图像。门控多相MRI方法用于在横向、冠状和矢状方向上获取每2个横截面图像。展示了重建的左心室和心肌三维形状的一些结果，并展示了在三维形状上给出左心室壁区域功能的三维功能图像。
