POTENTIAL TEMPERATURE RISE INDUCED BY ELECTROMAGNETIC-FIELD IN BRAIN-TISSUES

被引：39

作者：

KRITIKOS, HN

SCHWAN, HP

机构：

[1] Department of Bioengineering, University of Pennsylvania, Philadelphia

来源：

IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING | 1979年 / 26卷 / 01期

关键词：

D O I：

10.1109/TBME.1979.326493

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

The differential temperature rise in a spherical region stimulating a potential hot spot in the central region of a human head has been determined, taking into account heat conduction as well as heat convection due to blood flow. The results apply in general to all cases where the dimensions of the model and the frequency of the incident electromagnetic wave is such that a hot spot is formed near the central region. For a heat deposition rate of 10 mW/g in a hot spot of 1 cm radius, a differential temperature rise over the ambient tissues and blood is approximately 0.5° C. This corresponds to the case of a differential absorption cross section of 1 cm−1 for a 5 cm radius sphere exposed to an incident power density of 10 mW/cm2. For larger models of man's head the differential temperature rise is smaller. Copyright © 1979 by The Institute of Electrical and Electronics Engineers, Inc.

引用

页码：29 / 34

页数：6