We managed to increase the 3D coverage of dynamic speech magnetic resonance imaging to 32 slices with 96 mm full thickness, spatial resolution to 1.875×1.875×3mm and temporal resolution of 35 fps by applying sparsely sampling the temporal navigators with four k-space lines and and apply to a low-rank constraint Partial-Separability (PS) model for reconstruction. This enables visualization approaching isotropic resolution with the full vocal tract covered from side to side, enabling dynamic visualizations of complex motions that do not stay within a single imaging plane.
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