Accurate density matrix simulation of nuclear spin systems is critical for quantifying magnetic resonance spectroscopy (MRS) data, as well as for simulation studies designed to optimize acquisition parameters. Although a variety of packages exist to achieve this result, no currently available software is capable of computing a large number of spatial points in a reasonable time frame. Here we present and experimentally validate a novel MATLAB-based software package able to compute complex spin systems, including those exhibiting scalar coupling like GABA, for 643 spatial points within 25 minutes.
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