Schmiel F K, Kreuzer H, Spiller P
Rofo. 1975 Jul;123(1):26-9. doi: 10.1055/s-0029-1230144.
The difficulty of automatic volume estimations of the left ventricle from cine-ventriculography lies in the accurate definition of the ventricular contour during the whole of the cardiac cycle. On the other hand, automatic determination of the long axis of the ventricle, and of three transverse diameters, is feasible. An attempt was therefore made to see whether accurate ventricular volume estimations could be obtained from these measurements. Two different geometrical models were examined: a) A complete rotational ellipsoid b) A half rotational ellipsoid. Examination of ten cine-ventriculograms (totalling 546 frames) has shown that the ventricular volume can be determined with an adequate accuracy by this method. The half ellipsoid model produced better mean results than the full ellipsoid. Its mean deviation from the area-long axis method was only minus 1.2%, that of the complete ellipsoid was minus 3.3%.
从电影心室造影自动估计左心室容积的困难在于在整个心动周期中准确界定心室轮廓。另一方面，自动确定心室的长轴和三个横径是可行的。因此，人们尝试看看能否通过这些测量获得准确的心室容积估计值。研究了两种不同的几何模型：a）一个完整的旋转椭球体；b）一个半旋转椭球体。对十张电影心室造影片（共546帧）的研究表明，用这种方法可以足够准确地确定心室容积。半椭球体模型产生的平均结果比完整椭球体更好。它与面积-长轴法的平均偏差仅为负1.2%，完整椭球体的平均偏差为负3.3%。
