TY - JOUR
T1 - Thermal Distributions in Spherical Regions with Variable Thermal Conductivity
AU - Higgins, Patrick D
AU - Jafari, Farhad
PY - 1986/1
Y1 - 1986/1
N2 - A method for predicting relative temperature distributions in acoustically homogeneous regions heated by acoustic sources is presented. A generalized approach is presented in which thermal distortions, produced by variable conduction and/or perfusion cooling, are approximated as an effective conductivity term in a heat-diffusion equation. Calculated acoustic intensity distributions are input into the calculation for annularly focused sources. Sample calculations are compared with measurements in homogeneous rat mammary tumors and in normal pig muscle. More complex situations and implications for local hyperthermia treatment planning are presented.
AB - A method for predicting relative temperature distributions in acoustically homogeneous regions heated by acoustic sources is presented. A generalized approach is presented in which thermal distortions, produced by variable conduction and/or perfusion cooling, are approximated as an effective conductivity term in a heat-diffusion equation. Calculated acoustic intensity distributions are input into the calculation for annularly focused sources. Sample calculations are compared with measurements in homogeneous rat mammary tumors and in normal pig muscle. More complex situations and implications for local hyperthermia treatment planning are presented.
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U2 - 10.1109/T-UFFC.1986.26792
DO - 10.1109/T-UFFC.1986.26792
M3 - Article
AN - SCOPUS:0022564031
SN - 0885-3010
VL - 33
SP - 21
EP - 26
JO - IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
JF - IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
IS - 1
ER -