深部加温可能な電磁誘導加熱法

抄録

It is well known that it is difficult to heat deep-seated tumors by the induction method. In this paper, we proposed a new induction method which use two exciting coils, and theoretically and experimentally discussed it's feasibility in clinical use.
For theoretical and experimental analysis, we used a cylindrical model filled with the homogeneous agar solution which had almost the same electrical and thermal properties as those of human muscle.
In order to heat deep-seated tumors by the induction method, coils of various shapes were theoretically discussed.
We heated the phantom by these coils and measured temperature distributions. These results agreed well with theoretically calculated values, and showed that this method could provide the better temperature distribution than that provided by the usual method.
Applying this method to inhomogeneous model of human body, we calculated temperature distributions by the finite differential method. Those computed results showed that hot spots were able to be eliminated. This method and heated wherever we wanted by use coils of appropriate shape.
From these theoretical and experimental results, it is concluded that we can control temperature distribution in patients to a certain degree by this method, and this method can be used for clinical application.