Comparative analysis of different versions of a human model located inside a 1.5T MRI whole body RF coil

Abstract

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.

Design and Analysis of a Whole-Body Noncontact Electromagnetic Subthreshold Stimulation Device with Field Modulation Targeting Nonspecific Neuropathic Pain

“…SAR and device performance estimates are typically derived and accepted today from computational electromagnetics (CEM) simulations performed with detailed virtual humans [97]. In this study, we use the multi-tissue CEM phantom VHP-Female v. 5.0 (female/60 year/162 cm/88 kg, obese) [97][98][99][100][101][102][103] derived from the cryosection dataset archived within the Visible Human Project® of the US National Library of Medicine [104]. The phantom includes about 250 individual tissues and is augmented with material property values from the IT'IS database [105].…”