A 3-D [Formula Omitted] Finite/Infinite Element Method to Calculate Power Deposition in the Human Head

• Published in: IEEE transactions on biomedical engineering Vol. 54; no. 4; p. 734
• Main Authors: Xue, Dong, Demkowicz, L, Hao, Ling
• Format: Journal Article
• Language: English
• Published: New York The Institute of Electrical and Electronics Engineers, Inc. (IEEE) 01.01.2007
• Subjects: Assessments; Deposition; Errors; Finite element method; Human; Mathematical analysis; Mathematical models; Plane waves
• ISSN: 0018-9294; 1558-2531
• DOI: 10.1109/TBME.2006.889177

The electromagnetic power deposition and transfer properties of a G super(1) continuous head model reconstructed from magnetic resonance imaging (MRI) data are investigated by using the coupled hp finite/infinite element (FE/IE) method. The discretization error is controlled by a self-adaptive process driven by an explicit a posteriori error estimate. Based on the benchmark problem of reproducing the Mie series solution, the scattering of a plane wave on the curvilinear head model is used to evaluate the hp FE/IE approach and calibrate the error bound. The radiation pattern from a short dipole antenna modeling a cell phone, is analyzed in terms of the level and distribution of the specific absorption rates (SAR). The numerical experiments show that the hybrid hp FE/IE implementation is a competitive tool for accurate assessment of human electromagnetic exposure