Myocardial perfusion evaluated by contrast echocardiography. A preliminary report.
Myocardial perfusion evaluated by contrast echocardiography. A preliminary report.
复制标题
通过对比超声心动图评估心肌灌注。
作者：
M. Klicpera;D. Glogar;H. Mayr;W. Mohl;U. Losert;F. Kaindl
在六只杂种犬上研究了超声造影对心肌灌注的有效性。测试的两种造影剂为：（1）0.9%盐水溶液，和（2）富含CO2的盐水溶液（含0.2 ml CO2/10 ml）。只有后者的解决方案产生了心肌的阐明，并允许估计的分布和流动速度的造影剂，其特征在于使用以下三个参数：（1）透壁流动时间（0.13 +/- 0.02 s x +/- SEM）;（2）周向流动时间（1.43 +/- 0.31 s）;和（3）持续时间（42.0 +/- 4.3 s）。对血液动力学和心律没有严重的副作用。因此，超声造影提供了检测和定量心肌灌注的可能性。
The usefulness of contrast echocardiography for demonstration of myocardial perfusion was studied on six mongrel dogs. Two contrast agents tested were: (1) 0.9 percent saline solution, and (2) CO2-enriched saline solution (containing 0.2 ml CO2/10 ml). Only the latter solution produced an elucidation of the myocardium and allowed an estimation of the distribution and flow velocity of the contrast agent, which was characterized using the following three parameters: (1) transmural flow time (0.13 +/- 0.02 s x +/- SEM); (2) circumferential flow time (1.43 +/- 0.31 s); and (3) persistence time (42.0 +/- 4.3 s). There were no serious side effects on hemodynamics or heart rhythm. Thus, contrast echocardiography offers the possibility of detecting and quantitating myocardial perfusion.