EFFECTS OF COLLAPSING CAVITATION ON HIFU-EXPOSED BIOLOGICAL OBJECTS

V. Gryzunov; A. Zaycev; Yu. Kim; D. Tkhai

doi:10.31618/ESSA.2782-1994.2021.3.74.140

EFFECTS OF COLLAPSING CAVITATION ON HIFU-EXPOSED BIOLOGICAL OBJECTS

Автор(и)

V. Gryzunov Pavlov First Saint Petersburg State Medical University
A. Zaycev N.N. Petrov national medical research center of oncology
Yu. Kim Pavlov First Saint Petersburg State Medical University
D. Tkhai Pavlov First Saint Petersburg State Medical University

DOI:

https://doi.org/10.31618/ESSA.2782-1994.2021.3.74.140

Ключові слова:

acoustic field, energy density, temperature, thermal field, ultrasound, destruction, thermal ablation.

Анотація

Therapeutic significance in the studies of HIFU-induced effects of is attached to the local heating of tissues, but the role of the mechanical component caused by non-stationary cavitation is practically not taken into account. Calculations show that the temperature inside cavitation bubbles can differ significantly from the temperature in the thermal ablation zone, and the developing temperature gradient can change the formation of the thermal field. Collapsing bubbles can cause mechanical destruction of tissues.

Посилання

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