Thermal therapy of benign prostatic hyperplasia requires accurate prediction of the temperature distribution induced by the heating within the prostatic tissue. In this study, the Pennes bioheat transfer equation was used to model the transient heat transfer inside the canine prostate during transurethral microwave thermal therapy. Incorporating the specific absorption rate of microwave energy in tissue, a closed-form analytical solution was obtained. Good agreement was found between the theoretical predictions and in-vivo experimental results. Effects of blood perfusion and the cooling at the urethral wall on the temperature rise were investigated within the prostate during heating. The peak intraprostatic temperatures attained by application of 5, 10, or 15 W microwave power were predicted to be and Results from this study will help optimize the thermal dose that can be applied to target tissue during the therapy. [S0148-0731(00)01004-9]
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August 2000
Technical Papers
Studies on the Three-Dimensional Temperature Transients in the Canine Prostate During Transurethral Microwave Thermal Therapy
Jing Liu,
Jing Liu
School of Mechanical Engineering, Purdue University, West Lafayette, IN 47907-1288
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Liang Zhu,
Liang Zhu
Department of Mechanical Engineering, University of Maryland at Baltimore County, Baltimore, MD 21250
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Lisa X. Xu
Lisa X. Xu
School of Mechanical Engineering, Department of Biomedical Engineering, Purdue University, West Lafayette, IN 47907-1288
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Jing Liu
School of Mechanical Engineering, Purdue University, West Lafayette, IN 47907-1288
Liang Zhu
Department of Mechanical Engineering, University of Maryland at Baltimore County, Baltimore, MD 21250
Lisa X. Xu
School of Mechanical Engineering, Department of Biomedical Engineering, Purdue University, West Lafayette, IN 47907-1288
Contributed by the Bioengineering Division for publication in the JOURNAL OF BIOMECHANICAL ENGINEERING. Manuscript received by the Bioengineering Division February 22, 1999; revised manuscript received March 22, 2000. Associate Technical Editor: J. J. McGrath.
J Biomech Eng. Aug 2000, 122(4): 372-379 (8 pages)
Published Online: March 22, 2000
Article history
Received:
February 22, 1999
Revised:
March 22, 2000
Citation
Liu, J., Zhu, L., and Xu, L. X. (March 22, 2000). "Studies on the Three-Dimensional Temperature Transients in the Canine Prostate During Transurethral Microwave Thermal Therapy ." ASME. J Biomech Eng. August 2000; 122(4): 372–379. https://doi.org/10.1115/1.1288208
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