Development of re-entrant type hyperthermia system for many different kinds of deep tumor

在这项研究中，一种新的再密集型超热系统已经开发出来，可以在没有接触的情况下开发出许多不同类型的热肿瘤。以下，本研究的主要结果已显示。（1）根据3-D FEM估计的洞穴内的电磁场和温度分布。从这些结果中可以看出，所提议的加热方法对于深层肿瘤或超热是有用的。（2）基于计算机模拟器设计和构造的用于深肿瘤的再密集共振腔型超热系统。开发了一个空腔、撞击匹配单元、射频放大器、天线和计算机的系统组件。根据计算机模拟和实验加热的结果，在没有接触的情况下，通过使用不同的共振模式（TM 010和TM 012-类似模式）的情况下，有可能加热约2- 5厘米的深度肿瘤。移动物体的位置，最大温度的位置可以被控制。比较计算机模拟和实验结果，一致同意每个其他错误为1%或更少，温度分布同意每个错误为10%。“电磁波的影响是一个社会上的大问题。”开发的系统中的泄漏电磁场很难对循环产生不良影响，它已经发现，即拟议的加热系统可以适用于许多不同类型的热量、非接触、大小的相应位置，以及它的确切位置。

In this research, a new re-entrant type hyperthermia system was developed to heat many different kinds of deep tumor without contact. Below, the main results of this research are shown.(1) The electromagnetic field and temperature distributions inside the cavity were estimated by 3-D FEM. From these results, it was shown that the proposed heating method was useful for deep tumor hyperthermia.(2) The re-entrant resonant cavity type hyperthermia system for deep tumors was designed and constructed based on the computer simulations.・Developed system consists of a cavity, impedance matching unit, an RF amplifier, an antenna, a computer.・From the results of computer simulations and experimental heating, it was possible to heat the deep tumor of about 2-5cm in diameter by using the different resonance modes (TM010 and TM012-like-modes) without contact.・Moving the position of the object, the position of maximum temperature could be controlled.・Comparing the computer simulation and the experimental results, resonant frequencies agreed with each other with an error of 1% or less, and temperature distributions agreed with each other with an error of 10%.(3) The influence of electromagnetic waves is a social big problem. Leaked electromagnetic field of the developed system hardly has bad influence on the circumferenceIt was found that the proposed heating system could be applicable to heat many different kinds of tumors, noncontact, corresponding to the size and that position where it occurred.