Impact of the displacement current on low-frequency electromagnetic fields computed using high-resolution anatomy models

被引：36

作者：

Barchanski, A ^{[1
]}

De Gersem, H ^{[1
]}

Gjonaj, E ^{[1
]}

Weiland, T ^{[1
]}

机构：

[1] Inst Theorie Elektromagnet Felder, D-64289 Darmstadt, Germany

来源：

PHYSICS IN MEDICINE AND BIOLOGY | 2005年 / 50卷 / 19期

关键词：

D O I：

10.1088/0031-9155/50/19/N02

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

We present a comparison of simulated low-frequency electromagnetic fields in the human body, calculated by means of the electro-quasistatic formulation. The geometrical data in these simulations were provided by an anatomically realistic, high-resolution human body model, while the dielectric properties of the various body tissues were modelled by the parametric Cole-Cole equation. The model was examined under two different excitation sources and various spatial resolutions in a frequency range from 10 Hz to 1 MHz. An analysis of the differences in the computed fields resulting from a neglect of the permittivity was carried out. On this basis, an estimation of the impact of the displacement current on the simulated low-frequency electromagnetic fields in the human body is obtained.

引用

页码：N243 / N249

页数：7

共 17 条

[1]

Balay S, 1997, MODERN SOFTWARE TOOLS FOR SCIENTIFIC COMPUTING, P163

[2] Large systems of equations in a discrete electromagnetism: formulations and numerical algorithms [J].

Clemens, M .

IEE PROCEEDINGS-SCIENCE MEASUREMENT AND TECHNOLOGY, 2005, 152 (02) :50-72

[3]

Cole KS., 1972, Membranes, Ions and Impulses: A Chapter of Classical Biophysics

[4]

Dawson T. W., 1996, Applied Computational Electromagnetics Society Journal, V11, P72

[5]

Dawson T. W., 1996, Applied Computational Electromagnetics Society Journal, V11, P63

[6] Application of the finite difference time domain algorithm to quasi-static field analysis [J].

DeMoerloose, J ;

Dawson, TW ;

Stuchly, MA .

RADIO SCIENCE, 1997, 32 (02) :329-341

[7] FDTD calculations of the whole-body averaged SAR in an anatomically realistic voxel model of the human body from 1 MHz to 1 GHz [J].

Dimbylow, PJ .

PHYSICS IN MEDICINE AND BIOLOGY, 1997, 42 (03) :479-490

[8] The dielectric properties of biological tissues .1. Literature survey [J].

Gabriel, C ;

Gabriel, S ;

Corthout, E .

PHYSICS IN MEDICINE AND BIOLOGY, 1996, 41 (11) :2231-2249

[9] The dielectric properties of biological tissues .2. Measurements in the frequency range 10 Hz to 20 GHz [J].

Gabriel, S ;

Lau, RW ;

Gabriel, C .

PHYSICS IN MEDICINE AND BIOLOGY, 1996, 41 (11) :2251-2269

[10] The dielectric properties of biological tissues .3. Parametric models for the dielectric spectrum of tissues [J].

Gabriel, S ;

Lau, RW ;

Gabriel, C .

PHYSICS IN MEDICINE AND BIOLOGY, 1996, 41 (11) :2271-2293

← 1 2 →