[Effect of ultrasound of high intensity on the intraorganic vessels of the liver].

Under study was the influence of a single 3-minute-long exposure to ultrasound of high intensity (2 wt/cm2) upon intraorganic vessels of the liver in albino rats. The circulatory bed was examined 10 min., 5, 15 and 30 days after treatment with ultrasound. Methods ox injection, rentgenography, claering and histology revealed an unfavourable effect of ultrasound causing local construction of arteries and veins in early terms, uneven filling of the capillary bed with the injected mass, dilatation and deformity of capillaries. The above changes grew more pronounced during 15 days, by the end of the month they diminished but not disappeared.