3D quantitative amplified magnetic resonance imaging

Abstract

A method for magnetic resonance imaging performs a magnetic resonance imaging (MRI) apparatus an MRI imaging scan of a brain to produce 3D MRI videos of a brain; processes the 3D MRI videos to produce a sub-voxel motion Held of the brain induced by physiological motion; and displays the sub-voxel motion field. The processing comprises: generating a 3D complex linear steerable pyramid decomposition of the 3D MRI videos into multiple scales and orientations; temporally filtering phase coefficients of the 3D complex linear steerable pyramid decomposition; and solving an optical flow equation over the phase coefficients of the 3D complex linear steerable pyramid decomposition to produce the sub-voxel motion field in the form of voxel displacement maps.

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