间质热疗 applicators 的时域有限差分法电磁与热分析。时域有限差分法。

FDTD electromagnetic and thermal analysis of interstitial hyperthermic applicators. Finite-difference time-domain.

作者信息

Gentili G B, Leoncini M, Trembly B S, Schweizer S E

机构信息

Department of Electrical Engineering, University of Florence, Italy.

出版信息

IEEE Trans Biomed Eng. 1995 Oct;42(10):973-80. doi: 10.1109/10.464371.

DOI:10.1109/10.464371

PMID:8582727

Abstract

In this paper, the electromagnetic and thermal behavior of interstitial applicators was analyzed by using the Finite-Difference Time-Domain method. Two configurations were considered: a simple insulated dipole antenna radiating in a layered tissue, and an air cooled applicator radiating in a tissue-equivalent phantom. The proposed approach allows a detailed modeling of the complete structure of the applicator. Furthermore, Specific Absorption Rate and temperature distributions can be determined considering real clinical or experimental conditions. The temperature distribution for the air cooled applicator has been compared with experimental results.

摘要

在本文中，采用时域有限差分法分析了间质 applicators 的电磁和热行为。考虑了两种配置：一种是在分层组织中辐射的简单绝缘偶极天线，另一种是在组织等效体模中辐射的风冷 applicator。所提出的方法允许对 applicator 的完整结构进行详细建模。此外，可以考虑实际临床或实验条件来确定比吸收率和温度分布。已将风冷 applicator 的温度分布与实验结果进行了比较。