Real-Time Optimized Sampling Patterns for 3D Accelerated MRI Reconstruction

Abstract

A method for magnetic resonance imaging includes generating a sampling pattern; acquiring k-space data during an MRI scan using the generated sampling pattern; and reconstructing an MRI image from the acquired k-space data. The sampling pattern is generated by storing a variable-density model of k-space based on Voronoi-cell statistics extracted from a set of optimized sampling patterns; receiving one or more acquisition parameters for a target MRI scan, the acquisition parameters including at least a target acceleration rate; calculating a target sampling density across k-space by applying the variable-density model to the one or more acquisition parameters; and generating a sampling pattern in real-time based on the target sampling density such that the target acceleration rate is achieved.

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