Digital brain models with microstructure-derived Larmor frequency shifts

This dataset adds microstructure-derived frequency shifts within the white matter to the 2019 QSM Challenge model. The dataset contains two versions: one with, and one without microstructure effects. These extended models are published along the following publication: Jochmann et al. (2025) Quantitative susceptibility mapping in magnetically inhomogeneous tissues, Magnetic Resonance in Medicine. https://doi.org/10.1002/mrm.30537. The design of the original model is described in the following publication: Marques et al. (2021) A Realistic in Silico Head Phantom for MRI Data Simulation and Evaluation of Susceptibility Mapping Procedures. Magnetic Resonance in Medicine, 86 (1), 526–542. https://doi.org/10.1002/mrm.28716. Please cite both papers when using these models. Thank you. Acknowledgments and Funding Sources The creation of this dataset was partially supported by the Free State of Thuringia grant ThiMEDOP (2018 IZN 0004) with funds of the European Union (EFRE), the German Federal Ministry of Education and Research (BMBF) grant AVATAR (16KISA024, funded by the European Union - NextGenerationEU), the National Institute of Neurological Disorders and Stroke of the National Institutes of Health under Award Number R01NS114227 and the National Center for Advancing Translational Sciences of the National Institutes of Health under Award Number UL1TR001412, the German Academic Exchange Service (DAAD PPP 57599925), and an ISMRM Research Exchange Grant awarded to T.J. The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health.