SynthMRSI-Project: synthetic MRSI BIDS test dataset for MRSIPrep

A small, synthetic MRSI dataset for testing and validating the MRSIPrep preprocessing pipeline end-to-end. 32 subjects, single session each. T1w anatomical images are real, subsetted from two CC0 OpenNeuro datasets (ds000001, ds000117). MRSI signal (5 metabolites: NAANAAG, GPCPCh, CrPCr, GluGln, Ins) is model-synthesized, conditioned on each subject's own T1w. CRLB, SNR, and FWHM quality maps are real empirical acquisition-quality measures copied from real MRSI acquisitions, not synthetic. This is not real patient MRSI data. See PUBLIC_DATASET.md in the MRSIPrep repository for usage instructions. License note: this dataset (T1w images and MRSI data, as released here) is CC0, consistent with the CC0 license of its OpenNeuro source datasets. The MRSIPrep pipeline/code and Docker image that produced and can preprocess this data are separately licensed under the CHUV academic non-commercial research license and are not covered by this CC0 release.