Highly accurate calculation of electric field for transcranial magnetic stimulation using hybridizable discontinuous galerkin method.

ABSTRACT: The computation of electric field in transcranial magnetic stimulation (TMS) is essentially a problem of gradient calculation for thin layers. This paper introduces a hybrid-order hybridizable discontinuous Galerkin finite element method (HDG-FEM) and systematically demonstrates its superiority in TMS computations. The discrete format of HDG-FEM employing hybrid orders for TMS is derived and, from a fundamental numerical principle perspective, this study provides the elucidation of why HDG-FEM exhibits superior gradient computation capabilities compared to the widely used CG-FEM. Furthermore, the exceptional performance of HDG-FEM in thin layer calculation is demonstrated on both modified head models and realistic head models, focusing on three aspects: calculation errors, utilization of h

SUBMITTER: Wei L 

PROVIDER: S-EPMC11612496 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature