Studies on the Three-Dimensional Temperature Transients in the Canine Prostate During Transurethral Microwave Thermal Therapy

[+] Author and Article Information
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 47907-1288e-mail: lxu@ecn.purdue.edu

J Biomech Eng 122(4), 372-379 (Mar 22, 2000) (8 pages) doi:10.1115/1.1288208 History: Received February 22, 1999; Revised March 22, 2000
Copyright © 2000 by ASME
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Canine prostate and its capsular vascular network: (a) half cross-sectional slice; (b) longitudinal section (enlarged)
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Canine prostatic vasculature
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Schematic cross section of the canine prostatic tissue and vessels: (a) prostate and catheter; (b) catheter (enlarged)
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Three-dimensional configuration of the prostate under microwave heating
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Temperature and blood perfusion measurement in the canine prostate
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Comparison of the theoretical and experimental temperature responses at various probe locations (r,θ,z:#1:0.01 m, 126.9 deg, 0.015 m; #2: 0.009 m, 160 deg, 0.013 m; #3: 0.0125 m, 135.0 deg, 0.011 m)
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Steady-state temperature distribution in the midplane (z=0.015 m) during 5 W heating
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Steady-state temperature distribution at θ=0 deg during 5 W heating
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Temperature profile at r=0.008 m,θ=0,z=0.015 m with respect to the perfusion rate
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Perfusion-dependent radial steady-state temperature distribution at (θ=0,z=0.015 m) under 5 W heating
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Transient temperature elevation at r=0.008 m,θ=0,z=0.015 m under continuous heating
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Influence of the chilled water temperature on the urethral wall temperature (r=0.003 m,θ=0,z=0.015 m)
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Steady-state temperature distributions at (θ=0,z=0.015 m) under 5 W heating with different convection coefficients




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