<原著>2方向左室造影による左室壁厚の心周期における変化

概要

論文の詳細を見る
Biplane left ventricular cineangiogram (90 frames/sec) was performed in 18 patients with various heart diseases and left ventricular wall thickness was analyzed using an Angioanalzer System HP 5693A according to Rackley's method. Wall thickness showed no significant change during isometric contraction period. In 10 out of 18 patients including 2 normal subjects, wall thickness remained unchanged for approximately 200 msec after R spike of ECG, and in the other 7 it began to increase immediately after ejection started. In both groups wall thickness reached the maximum at the end of ejection and caused no significant change during isometric relaxation period. The fractional increase in wall thickness expressed as a percentage of wall thickness at R spike of ECG ranged from 76 to 145% in normals. Wall thickness decreased rapidly during early diastole as left ventricular volume increased very slowly to the value at the beginning of ejection during mid- or late diastole. These phenomena during diastole were observed in all cases except for one case with akinesia. There was an inverse relationship between left ventricular wall thickness and volume.
近畿大学の論文
1979-09-25