Induced current densities from low-frequency magnetic fields in a 2 mm resolution, anatomically realistic model of the body

被引：113

作者：

Dimbylow, PJ ^{[1
]}

机构：

[1] Natl Radiol Protect Board, Didcot OX11 0RQ, Oxon, England

来源：

PHYSICS IN MEDICINE AND BIOLOGY | 1998年 / 43卷 / 02期

关键词：

D O I：

10.1088/0031-9155/43/2/001

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

This paper presents calculations of current density in a fine-resolution (2 mm) anatomically realistic voxel model of the human body for uniform magnetic fields incident from the front, side and top of the body for frequencies from 50 Hz to 10 MHz. The voxel phantom, NORMAN, has a height of 1.76 m and a mass of 73 kg. There are 8.3 million voxels in the body differentiated into 37 tissue types. Both the impedance method and the scalar potential finite difference method were used to provide mutual corroboration. Results are presented for the current density averaged over 1 cm(2) in muscle, heart, brain and retina.

引用

页码：221 / 230

页数：10

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