Elshuraydeh K, Smits J, Heethaar R M, Denier van der Gon J J
J Biomed Eng. 1981 Jan;3(1):49-52. doi: 10.1016/0141-5425(81)90105-9.
Information about the geometry and intramural deformations of the left ventricle of the heart throughout the cardiac cycle is necessary for the analysis of contractile function of the intact heart. In this study a method is developed to measure dimensions and intramural deformations of the left ventricle of a dog heart during the cardiac cycle. Radiopaque markers (platinum spheres of 1mm diameter) were implanted in the wall of the left ventricle. The spatial positions of these markers were determined from pairs of perpendicular X-ray projections, obtained with the aid of rotational X-ray equipment. Preliminary results of ventricular deformations are in agreement with measurements by other techniques.
要分析完整心脏的收缩功能，了解心脏左心室在整个心动周期中的几何形状和壁内变形情况是必要的。在本研究中，开发了一种方法来测量犬心脏左心室在心动周期中的尺寸和壁内变形。将不透射线的标记物（直径1毫米的铂球）植入左心室壁。这些标记物的空间位置是通过借助旋转X射线设备获得的成对垂直X射线投影来确定的。心室变形的初步结果与其他技术的测量结果一致。
