RESUMO
Power deposition in tissues of a person subject to MRI examination is a significant point of concern today. Numerical electromagnetic simulation offers a way to model this complex problem with a sufficient degree of accuracy. Assessment of power deposition due to presence of implantable leads has been widely applied using the transfer function method. It relays on the incident tangential electric field (Etan) along the lead trajectory. This paper investigates how the precision of a numerical human model influences calculated Etan.
Assuntos
Imageamento por Ressonância Magnética , Eletricidade , Campos Eletromagnéticos , Humanos , Próteses e Implantes , Ondas de RádioRESUMO
Simulation of the electromagnetic response of the human body relies heavily upon efficient computational models or phantoms. The first objective of this paper is to present an improved platform-independent full-body electromagnetic computational model (computational phantom), the Visible Human Project® (VHP)-Female v. 3.1 and to describe its distinct features and enhancements compared to VHP-Female v. 2.0. The second objective is to report phantom simulation for electric stimulation studies using the commercial FEM electromagnetic solver ANSYS MAXWELL.
Assuntos
Simulação por Computador , Corpo Humano , Imagens de Fantasmas , Fenômenos Eletromagnéticos , Feminino , Humanos , Modelos Anatômicos , Projetos Ser Humano VisívelRESUMO
Simulation of the electromagnetic response of the human body relies upon efficient computational models. The objective of this paper is to describe a new platform-independent and computationally-efficient full-body electromagnetic model, the Visible Human Project® (VHP)-Female v.3.0 and to outline its distinct features. We also report model performance results using two leading commercial electromagnetic antenna simulation packages: ANSYS HFSS and CST MICROWAVE STUDIO®.
