Kunitsch G, Mareés H
Rofo. 1975 Sep;123(3):230-5. doi: 10.1055/s-0029-1230186.
A simple roentgenological procedure is described, by which it is possible to measure the heart volume and its alteration during early orthostatic adaptation.--Long distance films are taken in the p.a.-projection using a 70-mm-camera with a frequency of 2 to 4 exposures per second. The length and width and there by the plane of the heart are determined from these films. The mean horizontal depth diameter, that is necessary to calculate the volume of the heart can be gained by indirect means. There is no statistically significant difference between the heart volumes, that have been determined in 12 test persons by the method described, and the commonly used method. -- The alteration of the heart volume in 10 test persons were investigated during acute orthostatic stress. The heart volume, which was 693 +/- 24,8 ml before the orthostatic stress, decreased within 6,9 +/- 1,6 sec statistically significant by 16,5% An influence of the movements of the diaphragm on the heart volume determination could be excluded.
本文描述了一种简单的X射线检查方法，通过该方法可以测量早期直立适应过程中心脏体积及其变化。——使用70毫米相机在前后位投照下拍摄远距离影片，每秒曝光2至4次。从这些影片中确定心脏的长度、宽度以及心脏平面。计算心脏体积所需的平均水平深度直径可通过间接方法获得。通过所述方法在12名测试者中确定的心脏体积与常用方法之间无统计学显著差异。——对10名测试者在急性直立应激期间心脏体积的变化进行了研究。直立应激前心脏体积为693±24.8毫升，在6.9±1.6秒内统计学显著下降了16.5%。可以排除膈肌运动对心脏体积测定的影响。
