An Experimental Study of Temperature Distribution in Prostatic Cancer at 8 MHz-RF Heating using Agar Phantom

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  • Nakajima Kazuyoshi
    Department of Urology, School of Medicine, Kanazawa Univ(Director: Rrof. H. Hisazumi)
  • Hisazumi Haruo
    Department of Urology, School of Medicine, Kanazawa Univ(Director: Rrof. H. Hisazumi)

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  • 前立腺癌に対する8MHz-RF加温療法時の温度分布に関する基礎的研究

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An agar phantom possessing a cavity, which simulated the rectum, was employed in the experiment to evaluate temperature distribution at RF-heating. In the phantom, the rising temperature around the cavity at 0 and 6 o'clock, where the prostate is situated, was rather low. The temperature, however, rose prominently when the cavity was filled up with a condom containing 5 % NaCl solution. This suggested that NaCl solution facilitated the heating current around the cavity. These observations are thought to be applicable in cases of other malignancies in cavity organs such as the esophagus and bronchus, as well as prostatic cancer.

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