The Physical Effects of Bubbles and Cavitation in High Intensity ...
The Physical Effects of Bubbles and Cavitation in High Intensity ...
The Physical Effects of Bubbles and Cavitation in High Intensity ...
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What Happens if the Tissue Gets Too<br />
Hot Too Quickly?<br />
Lesion formation <strong>in</strong> a gel<br />
<br />
<br />
LHS: side light<strong>in</strong>g<br />
RHS: back light<strong>in</strong>g<br />
3.5 MHz, 14 kW/cm 2 , 30 sec exposure<br />
Two separate runs <strong>in</strong> a low<br />
absorb<strong>in</strong>g phantom<br />
Boil<strong>in</strong>g leads to the formation <strong>of</strong> a<br />
malformed tadpole” lesion<br />
Inertial cavitation precedes boil<strong>in</strong>g,<br />
but the progression is extremely<br />
rapid (10’s s <strong>of</strong> msec)<br />
Khokhlova et al., J. Acoust Soc. Am.<br />
119, , 834-848, 2006<br />
30
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