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Proceedings Paper

Influence of acoustic power on parietal thermometry during extracorporeal high-intensity focused ultrasound treatments
Author(s): Francois Lacoste; Benoit Feuillu; Jacques Schlosser; Guy Vallancien
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Paper Abstract

Objectives: Compare the muscular parietal heating during high intensity focused ultrasound (HIFU) at different acoustic power levels. Methods: 3 series of 100 acoustic pulses of same energy but variable power were applied in vivo on the muscular lumbar and abdominal walls in 4 pigs. The target volume was located 47 to 94 mm behind the skin. Two thermocouples were inserted into the muscular wall facing the focal point 10 - 15 m and 25 - 30 mm from the skin. The position of the treatment head was the same for the 3 series of acoustic pulses. The temperatures in the muscular wall were recorded during the HIFU treatment. Conclusion: During extracorporeal HIFU treatments, the muscular parietal heating is variable among individuals and increases with the acoustic power.

Paper Details

Date Published: 2 April 1998
PDF: 4 pages
Proc. SPIE 3249, Surgical Applications of Energy, (2 April 1998); doi: 10.1117/12.304347
Show Author Affiliations
Francois Lacoste, Edap-Technomed (France)
Benoit Feuillu, Ctr. Hospitalier Universitaire de Nancy-Brabois (France)
Jacques Schlosser, Ctr. Hospitalier Universitaire de Nancy-Brabois (France)
Guy Vallancien, CERA/Institut Montsouris (France)

Published in SPIE Proceedings Vol. 3249:
Surgical Applications of Energy
Thomas P. Ryan, Editor(s)

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