Meeting Banner
Abstract #0355

Fast Full-Wave Calculation of Electromagnetic Fields for MRI Applications Based on Weak-Form Volume Integral Equation (VIE)

Wan Luo1,2, Shao Ying Huang1, Jiasheng Su1, Zu-Hui Ma1, and J. Thomas Vaughan3

1Singapore University of Technology and Design, Singapore, Singapore, 2University of Electronic Science and Technology of China, Chengdu, China, People's Republic of, 3University of Minnesota, Minneapolis, MN, United States

When B0 in a MRI system increases, peaks and nulls are formed in the energy/field distribution inside the subject under scan, which causes safety issues and deteriorates imaging accuracy, respectively. Therefore, a quick and accurate electromagnetic simulation of the human body is crucial for predicting the temperature and specific absorption rate distribution before a scan. Here, we develop a solver based on the weak-form volume integral equation (VIE) and accelerated by the fast Fourier transform method. It requires much less CPU time and memory compared with the traditional strong-form VIE and the popular FDTD-based commercial software SEMCAD.

This abstract and the presentation materials are available to members only; a login is required.

Join Here