The Physical Effects of Bubbles and Cavitation in High Intensity ...

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What Happens if the Tissue Gets Too Hot Too Quickly? Lesion formation in a gel LHS: side lighting RHS: back lighting 3.5 MHz, 14 kW/cm 2 , 30 sec exposure Two separate runs in a low absorbing phantom Boiling leads to the formation of a malformed tadpole” lesion Inertial cavitation precedes boiling, but the progression is extremely rapid (10’s s of msec) Khokhlova et al., J. Acoust Soc. Am. 119, , 834-848, 2006 30
What Happens if the Tissue Gets Too Hot Too Quickly? 31
Page 1 and 2: The Physical Effects of Bubbles and
Page 3 and 4: Medical Ultrasonics in a Nutshell
Page 5 and 6: A Prominent Role for Microbubbles!
Page 7 and 8: Acoustic Cavitation A Recipe… Sta
Page 9 and 10: Physical Effects Stable Cavitation
Page 11 and 12: Physical Effects Inertial Cavitatio
Page 13 and 14: Physical Effects Inertial Cavitatio
Page 15 and 16: Physical Effects Collapse Jets Extr
Page 17 and 18: Geneology of Cavitation Cloud Colla
Page 19 and 20: Focused Ultrasound Surgery Tissue H
Page 21 and 22: Focused Ultrasound Surgery Tissue H
Page 23 and 24: Focused Ultrasound Surgery Dependen
Page 25 and 26: Sensing Accelerated Heating with No
Page 27 and 28: Can We Control -- or at least monit
Page 29: A Simple Cavitation Controller? 10
Page 33 and 34: Not Necessarily So long as you
Page 35: I Thank… YOU, FOR YOUR KIND ATTEN

The Physical Effects of Bubbles and Cavitation in High Intensity ...

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