Ultrasonically Induced Cavitation in Biological Tissues
نویسندگان
چکیده
منابع مشابه
Involvement of ultrasonically induced cavitation in the production of hind limb paralysis of the mouse neonate.
The exposure conditions which produce hind limb paralysis in 10%, 50%, and 90% of mouse neonate specimens exposed to 1-MHz ultrasound at 10 ø C and at 1and 16-atm hydrostatic pressure were determined for the intensity range 86-289 W/cm 2. The change in the exposure duration for 50% of the specimens paralyzed resulting from pressurization to 16 atm was negligible at 86 and 144 W/em 2 but was alm...
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Blood flow speed is an important functional parameter. Doppler ultrasound flowmetry lacks sufficient sensitivity to slow blood flow (several to tens of millimeters per second) in deep tissue. To address this challenge, we developed ultrasonically encoded photoacoustic flowgraphy combining ultrasonic thermal tagging with photoacoustic imaging. Focused ultrasound generates a confined heat source ...
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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...
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ژورنال
عنوان ژورنال: The Journal of the Acoustical Society of America
سال: 1973
ISSN: 0001-4966
DOI: 10.1121/1.1978087