Effects of pulsed ultrasound on the frog heart: II. An investigation of heating as a potential mechanism.


This study investigated heating as the possible mechanism for the reduction in aortic pressure observed as a result of exposure of frog hearts in vivo to a single, high intensity pulse of ultrasound. The threshold for producing reduced aortic pressure with 5 ms pulses of ultrasound was found to be approximately 5-10 MPa peak positive pressure (ISPPA… (More)


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