Cherrier F, Ethévenot G, Beissel J, Neimann J L
Arch Mal Coeur Vaiss. 1977 Jul;70(7):669-705.
The authors compare 5 methods of evaluating left ventricular volume and the ejection fraction by monoplanar angiocardiography in the 30 degrees right oblique incidence: the method of Green (1 and 2), Snow and Dodge, and by trapezoidal integration which was used as a reference. The have calculated the regression ordinates and the correlation coefficients for various systolic and diastolic volumes as well as for various ejection fractions. For these latter, Dodge's quadratic equation can also be used. Provided there is no gross distorsion of ventricular contolr, there is fairly good correlation, but there is a marked discrepancy for large volumes or small ejection fractions (less than 0.40). When more elaborate methods are not available, it seems reasonable to use a single method to calculate these parameters, but it is essential to have recourse to other techniques when there are gross changes in the left ventricle.
作者比较了在右前斜30度时通过单平面心血管造影评估左心室容积和射血分数的5种方法：格林（1和2）法、斯诺和道奇法，以及用作参考的梯形积分法。他们计算了各种收缩期和舒张期容积以及各种射血分数的回归纵坐标和相关系数。对于后者，也可以使用道奇二次方程。如果心室控制没有严重扭曲，相关性相当好，但对于大容积或小射血分数（小于0.40）存在明显差异。当没有更精细的方法可用时，使用单一方法计算这些参数似乎是合理的，但当左心室有明显变化时，必须采用其他技术。
