Experimental and Numerical Investigations of SENSE Array Performances from High to Ultra-High Field Strengths
Wang S, Ledden P, de Zwart J, Koretsky A, Duyn J, van Gelderen P
LFMI, NINDS, National Institutes of Health
To verify earlier theoretical predictions of increased parallel imaging performance at high field, closely gapped arrays were compared at various field strengths, both experimentally and numerically. Experiments were conducted at 1.5, 3.0 and 7.0 Tesla respectively to verify the simulation results. The simulation was then extended to 11.7, 14.0 and 21.0 Tesla. Consistent with earlier studies, the simulations showed an improvement of SENSE performance at high field strengths, in particular for higher acceleration rates. Furthermore, experimental results obtained at 1.5 T, 3.0 T and 7.0 T closely matched the simulations.