Specific heat capacity of freshly excised prostate specimens.
The specific heat capacity of tissue is a critical parameter for thermal therapies that act over a long period of time. It is also critical for thermoacoustic signal generation. We present ex vivo measurements of specific heat capacity performed by a dual-pin probe with tight temperature control of the specimen. One 30 mm × 1.28 mm probe heats steadily for 30 s, while another measurement probe measures temperatures 6 mm away from the center of the heater probe. Specific heat values ranging from 2.9 to 4 J cm(-3) °C(-1) were measured on 20 lobes from ten fresh prostate specimens with varying degrees of cancerous involvement as confirmed by histology.
Dept. of Physics, University of Wisconsin-Milwaukee, 1900 E Kenwood Blvd, Milwaukee WI 53211, USA. patchs@uwm.edu
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Patch
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Rao
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Kelly
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Jacobsohn
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D003198:Computer Simulation; D004867:Equipment Design; D006358:Hot Temperature; D006801:Humans; D008297:Male; D008954:Models, Biological; D008991:Monitoring, Physiologic / Q000379:methods*; D011467:Prostate / Q000473:pathology* / Q000502:physiology* / Q000601:surgery; D011468:Prostatectomy; D013696:Temperature; D013821:Thermometers