Abstract
An orignal circulating hot water hyperthermia system for interstitial treatment has been constructed at the University Cliic for Radiotherapy and Radiobiology in Vienna, Austria. At the Institute of Oncology in Ljubljana, Slovenia, animal experiments as well as a few human treatments were done. Results obtained with 4×4 metal needle implants on rabbits and/or pigs thigh showed that a good temperature distribution inside the heated volume could be achieved. The homogeneity of temperature distribution obtained in human applications using plastic tubes was also acceptable. Although somewhat lower temperatures inside the treated volume were measured in human treatments, the minimum temperatures obtained were still on the cytotoxic level (over 42,5 °C). With some improvements using cooling system for the tumor surrounding zone the damage of the healthy tissue inside the treatment volume could be avoided.
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