PARENT SESSION
1:30 PM to 3:30 PM
Monday, April 22, 2002
Poster Session 3 Heating Devices and High Temperature Therapy
Room: Nevada 1-2

(MP03-31) An Ideal HIFU Power Deposition Pattern.

CHENG, KUNG-SHAN^*,1, ROEMER, ROBERT¹, ¹ University of Utah - Mechanical Engineering 50 S. Central Campus Drive, MEB 2202 Salt Lakt City Utah 84112, SALT LAKE CITY, UTAH

ABSTRACT-
The work of Ocheltree and Frizzel that determined the optimal power deposition for hyperthermia temperature distributions provided a useful, simple approach to help understand the important parameters in tumor heating. The present work extends their approach to determine the optimal power deposition pattern needed to obtain a uniform thermal dose in a tumor for a single heating pulse. The cases of multiple pulses given in different parts of tumor are also considered. The solution space and sensitive coefficients are determined for several different physiological and anatomical situations. The results of this analysis should be useful in improving and speeding up the optimization and control of HIFU treatments.

KEYWORDS: HIFU, optimal power deposition, ideal thermal dose