Abstract
Mesoscopic (0.1-0.5 mm) interrogation of the living human brain is critical for advancing neuroscience and bridging the resolution gap with animal models. Despite the variety of MRI contrasts measured in recent years at the mesoscopic scale, in vivo quantitative imaging of T2* has not been performed. Here we provide a dataset containing empirical T2* measurements acquired at 0.35 × 0.35 × 0.35 mm3 voxel resolution using 7 Tesla MRI. To demonstrate unique features and high quality of this dataset, we generate flat map visualizations that reveal fine-scale cortical substructures such as layers and vessels, and we report quantitative depth-dependent T2* (as well as R2*) values in primary visual cortex and auditory cortex that are highly consistent across subjects. This dataset is freely available at https://doi.org/10.17605/OSF.IO/N5BJ7, and may prove useful for anatomical investigations of the human brain, as well as for improving our understanding of the basis of the T2*-weighted (f)MRI signal.
Original language | English (US) |
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Article number | 119733 |
Journal | NeuroImage |
Volume | 264 |
DOIs | |
State | Published - Dec 1 2022 |
Bibliographical note
Funding Information:We thank our anonymous reviewers for their helpful comments. We thank Nikola Stikov, Jonathan Polimeni, Jeff Duyn, David Norris, and Robert Turner for their comments on the first version of our preprint. We have benefited from these valuable comments to improve our manuscript. We thank Federico De Martino for his contributions in the early stages of this study. We thank Valentin Kemper, Martin Havlicek, Kamil Uludag, Nikolaus Weiskopf, Logan Dowdle, Jonathan Winawer, Simon Robinson, Korbinian Eckstein, Michelle Moerel for fruitful discussions and their support at various stages of this project. Additionally, we thank Elizabeth DuPre, Gilles De Hollander, Taylor Salo, and Agah Karakuzu for their help with Brain Imaging Data Structure (BIDS) organization of our dataset (https://neurostars.org/t/multi-echo-anatomical-mri-bids-questions/17157). SB was funded from the NHMRC-NIH BRAIN Initiative Collaborative Research Grant APP1117020, and NIH grant 1R01MH111419. R.H. was funded from the NWO VENI project 016.Veni.198.032. K.W. was funded by the Wellcome Trust (215901/Z/19/Z). B.P. was partially funded by the NWO VIDI grant 16.Vidi.178.052, by the National Institute for Health grant R01MH/111444 (PI: David Feinberg) and by the H2020 FET-Open AROMA grant agreement no. 88587. R.G. received funding from the European Unions Horizon 2020 Framework Programme for Research and Innovation under the Specific Grant Agreement No. 945539 (Human Brain Project SGA3). O.F.G. and R.G. have financial interest tied to Brain Innovation. Scanning was supported by FPN (faculty of psychology and neuroscience) via the MBIC grant scheme. Scanning was performed at the facilities of Scannexus B.V. (Maastricht, Netherlands). T2* mapping was done with an ASPIRE sequence, kindly provided by Simon Robinson via SIEMENS C2P.
Funding Information:
SB was funded from the NHMRC-NIH BRAIN Initiative Collaborative Research Grant APP1117020, and NIH grant 1R01MH111419. R.H. was funded from the NWO VENI project 016.Veni.198.032. K.W. was funded by the Wellcome Trust (215901/Z/19/Z). B.P. was partially funded by the NWO VIDI grant 16.Vidi.178.052, by the National Institute for Health grant R01MH/111444 (PI: David Feinberg) and by the H2020 FET-Open AROMA grant agreement no. 88587. R.G. received funding from the European Unions Horizon 2020 Framework Programme for Research and Innovation under the Specific Grant Agreement No. 945539 (Human Brain Project SGA3). O.F.G. and R.G. have financial interest tied to Brain Innovation. Scanning was supported by FPN (faculty of psychology and neuroscience) via the MBIC grant scheme. Scanning was performed at the facilities of Scannexus B.V. (Maastricht, Netherlands). mapping was done with an ASPIRE sequence, kindly provided by Simon Robinson via SIEMENS C2P.
Publisher Copyright:
© 2022 The Author(s)
Keywords
- 7 T
- Angioarchitecture
- Auditory
- Brain
- Cortex
- Human
- In vivo
- Layers
- MRI
- Mesoscopic
- R
- T
- Vessels
- Visual
Center for Magnetic Resonance Research (CMRR) tags
- NMC
- IRP
PubMed: MeSH publication types
- Journal Article
- Research Support, N.I.H., Extramural
- Research Support, Non-U.S. Gov't