Objective To evaluate the value of acoustic densitometry (AD) in detecting myocardium damage of the left ventricle secondry to hypoxic pulmonary hypertension (PH).
目的探讨声学密度定量（AD）技术定量评价缺氧肺动脉高压（PH）后左室心肌损害的应用价值。
2
Result: To the viable myocardiumof left ventricle, parameters of integrated backscatter have improved at the 3th day after operation , and have statistical significant ;
结果：左室存活心肌背向散射积分参数值于术后3天就有了改善，与术前相比有统计学意义；
3
It revealed a band of fat with a high signal intensity in the myocardiumof the anterior free wall of the right ventricle.