Jorge Fernandez Villena1, Amit Hochman2, Luis Miguel Silveira1, Elfar Adalsteinsson2, 3, Lawrence L. Wald, 34, Jacob K. White2, Luca Daniel2
1INESC ID Instituto de Engenharia de Sistemas e Computadores Investigao e Desenvolvimento, Lisbon, Portugal; 2Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA, United States; 3Harvard-MIT Division of Health Sciences Technology, Cambridge, MA, United States; 4Department of Radiology, Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA, United States
We propose a fast electromagnetic (EM) simulation of RF coils operating in the presence of realistic human body models (RHBM), based on frequency-domain integral equation methods. We introduce the RHBM Greens functions (GF), which mimic the effect of the RHBM inside an EM field due to coils currents. This RHBM GF needs to be precomputed only once for a given complex body model, and then it can be combined with traditional Boundary Element Methods that only discretize the coil surface. This scheme generates smaller models that are very fast to solve, allowing for efficient coil design exploration.