Magnetic Resonance in Medicine
Clinical Soma and Neurite Density Imaging ( SANDI ): Translational Microstructure Mapping on Clinical 3T MRI Scanners
ABSTRACT Purpose The Soma and Neurite Density Imaging (SANDI) model enables characterization of gray matter (GM) microstructure by estimating soma and neurite signal fractions, but its clinical applicability is limited by the need for multi‐shell acquisitions (at least five b ‐values up to 6000 s/mm 2 ), requiring high‐gradient MRI systems. We developed a clinically feasible SANDI model that reduces data requirements and model complexity while preserving sensitivity to cellular‐level microstructural features. Metho …