Implications of Posture Changes on Local SAR and B1+ Homogeneity in RF Shimming at 3T

Keywords

absolute account adjustable alter amplifiers amplitude appears applied apply approaches available axial azimuthal azimuthally back biomedical body cell challenging channel coefficient coil coils column combined complex compute computed consistent constant continues coordinate copper core correlate cost degrees denote desired distributions divided domain done duke easily equal even except excited family feeding feeds field fields finite former forty freedom functions furthest generate global greater highest highly homogeneity human implications individually initial input investigate junctions largely larger least length lists local located long longer magnitudes maps matrix measured model models moves much observe occurs optimal optimization optimized others patient peak pelvis pelvises percentage position posterior posture postures power previous profiles properties pulse quad realizations relatively remain respective risk risks rung rungs seek shimming significantly simulations since slice software source sources space stacked subject suggests tailor take target task tissue transmit transmitted trials tuned types unchanged variation varied vector voltage voltages waveforms wide yielded