[Effect of high-frequency pulse ultrasound on experimental myocardial infarction]

The rat precardial region was exposed to single 30-minute and course radiations with pulse ultrasound at 2640 kHz before and after experimental myocardial infarction. Ligation of the left coronary artery caused an increase in 99mTc pirphotech accumulation by 243.4% as compared with the controls. Single and course ultrasounding after left coronary ligation substantially decreased rat myocardial isotope accumulation (by 130 and 179.1%, respectively) and reduced the number of complications, and prolonged animals' survival.