XF generates the specific absorption rate (SAR) matrices required by virtual observation point (VOP) compression algorithms by utilizing the workflow outlined below. Running a single, finite-difference time-domain (FDTD) simulation computes field values for each transmit element of an MRI coil, and the fields are then combined with varying weights and provided to the SAR averaging routines during post-processing.
VOP Compression | XFdtd
Post-process averaged SAR results.