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Abstract:
Parallel imaging with electronically modulated time-varying receive sensitivities is a novel concept for improved reconstruction quality and reduced noise amplification. Previously, it was demonstrated for 2D imaging using reconfigurable surface loop receive elements. In the present work, we extend the approach to 3D imaging and for that introduce a reconfigurable single-row dipole receive array. By using PIN diodes to switch between capacitive and inductive impedance in the dipole arms, spatially distinct sensitivity profiles are formed that can be rapidly modulated. This is shown to enable parallel imaging acceleration along the dipole’s axis and improve reconstruction quality compared to static sensitivities.
