Ultrasonically induced temperature elevation in mouse ovary.
Temperature increases, resulting from exposure to 1 MHz ultrasound, were measured in in situ and in exteriorized mouse ovaries. It is concluded that temperature increases from exposure to 10 W/cm2 and less are probably not significant for producing ovarian tissue damage, but that 25 W/cm2 exposures, and greater, are of such magnitude that damaging thermal levels ensue. The significance of blood flow in removing ultrasonically generated heat has been observed quantitatively.
D000818:Animals; D001831:Body Temperature; D005260:Female; D051379:Mice; D010053:Ovary / Q000098:blood supply / Q000502:physiology*; D012039:Regional Blood Flow; D013997:Time Factors; D014465:Ultrasonics