Title :
A theoretical investigation of current density concentration in the ankle
Author_Institution :
Nat. Radiol. Protection Board, Chilton, UK
Abstract :
Calculations are presented of current density and power absorption in the lower leg. The structure of the leg is defined by cross-sectional slices from an anatomical atlas which are mapped into a three-dimensional model of over 14000 rectilinear cells. A finite-difference method based on the quasistatic approximation is used to solve for the complex electric field in the 3-D structure of cells whose electrical properties are defined by a complex conductivity tensor. The results are presented and discussed.<>
Keywords :
bioelectric phenomena; biological effects of fields; bone; difference equations; 3-D structure; 3D; RF EM fields; SAR; anatomical atlas; ankle; complex conductivity tensor; complex electric field; cross-sectional slices; current density concentration; electrical properties; finite-difference method; leg structure; lower leg; power absorption; quasistatic approximation; rectilinear cells; safety levels; three-dimensional model;
Conference_Titel :
Engineering in Medicine and Biology Society, 1988. Proceedings of the Annual International Conference of the IEEE
Conference_Location :
New Orleans, LA, USA
Print_ISBN :
0-7803-0785-2
DOI :
10.1109/IEMBS.1988.95228
