Brenot P, Angel C Y, Vuthien H, Letienne G, Gaux J C
Service de Radiologie Cardio-Vasculaire, Hôpital Broussais, Paris, France.
Pathol Biol (Paris). 1988 Apr;36(4):325-30.
Intravenous digital angiography of the left ventricle (LV) was submitted to videodensitometric analysis in order to measure the ejection fraction (EF) and ventricular volumes. The video-densitometric method was first validated using an experimental model consisting of latex balloons filled with contrast medium. The correlation for ejection fraction measurements was satisfactory (r = 0.9449), with less than 10% errors. For ventricular volumes, the correlation was also good (r = 0.97 and 0.92 with the Chapman and Dodge methods respectively), but marked variations across individuals were found. Digital videodensitometry thus appears to be a feasible and reliable method for ejection fraction and ventricular volume measurements. Further studies are needed to determine the accuracy of measurements of ventricular volumes.
为了测量射血分数（EF）和心室容积，对左心室（LV）进行了静脉数字血管造影，并进行了视频密度分析。首先使用由充满造影剂的乳胶气球组成的实验模型对视频密度测定法进行验证。射血分数测量的相关性令人满意（r = 0.9449），误差小于10%。对于心室容积，相关性也很好（分别与查普曼法和道奇法的r = 0.97和0.92），但发现个体间存在明显差异。因此，数字视频密度测定法似乎是一种用于测量射血分数和心室容积的可行且可靠的方法。需要进一步研究以确定心室容积测量的准确性。
