60赫兹磁场在人和啮齿动物模型中诱发的电流。

Induced electric currents in models of man and rodents from 60 Hz magnetic fields.

作者信息

Xi W, Stuchly M A, Gandhi O P

机构信息

Department of Electrical and Computer Engineering, University of Victoria, B.C.

出版信息

IEEE Trans Biomed Eng. 1994 Nov;41(11):1018-23. doi: 10.1109/10.335839.

DOI:10.1109/10.335839

PMID:8001990

Abstract

Induced electric currents in models of man, rat and mouse from 60 Hz magnetic fields are computed using the impedance method. The models all have realistic shapes, and in the case of rodents, a homogeneous average tissue conductivity is assumed. The model of man is analyzed for two cases, a homogeneous average tissue conductivity and a heterogeneous model, both consisting of 1.3 cm cubical tissue cells whose conductivities are representative of the tissue within the cube. The results for various models and species, as well as different orientations of the magnetic field, are compared. The data presented are useful as the first step in dosimetry for 60 Hz magnetic fields, and for interspecies scaling of biological interactions related to the tissue induced electric currents.

摘要

使用阻抗方法计算了60赫兹磁场作用于人体、大鼠和小鼠模型时产生的感应电流。这些模型都具有逼真的形状，对于啮齿动物模型，假设其组织电导率为均匀平均值。对人体模型分析了两种情况，一种是均匀平均组织电导率，另一种是异质模型，两者均由边长为1.3厘米的立方体组织细胞组成，这些细胞的电导率代表立方体内的组织。比较了不同模型、物种以及磁场不同方向的结果。所呈现的数据可作为60赫兹磁场剂量学的第一步，以及与组织感应电流相关的生物相互作用种间缩放的有用数据。