Short‐term gradient imperfections in high‐resolution <scp>EPI</scp> lead to Fuzzy Ripple artifacts
The proposed mitigation strategies allow overcoming current limitations in layer-fMRI protocols: Achieving resolutions beyond 0.8 mm is feasible, and even at 3T, we achieved 0.53 mm voxel functional connectivity mapping. Sub-millimeter sampling acceleration can be increased to allow sub-second TRs and laminar whole brain protocols with up to GRAPPA 8. Sub-millimeter fMRI is achievable in lower brain areas, including the cerebellum.
Authors
- Susan G. Wardle (ORCID: https://orcid.org/0000-0003-2216-7461)
- Andrew S. Persichetti (ORCID: https://orcid.org/0000-0002-1580-8497)
- Rüdiger Stirnberg (ORCID: https://orcid.org/0000-0001-7021-1063)
- Alexander J. S. Beckett (ORCID: https://orcid.org/0000-0002-7123-9559)
- David A. Feinberg (ORCID: https://orcid.org/0009-0002-5016-9165)
- Peter A. Bandettini (ORCID: https://orcid.org/0000-0001-9038-4746)
- Philipp Ehses (ORCID: https://orcid.org/0000-0002-5839-6525)
- Lasse Knudsen (ORCID: https://orcid.org/0000-0003-0186-4209)
- Nicolas Boulant (ORCID: https://orcid.org/0000-0003-2144-2484)
- Andrew Morgan (ORCID: https://orcid.org/0000-0001-6017-2179)
- Tony Stoecker (ORCID: https://orcid.org/0000-0002-8946-9141)
- Kenshu Koiso (ORCID: https://orcid.org/0000-0001-5931-6294)
- Ömer Faruk Gülban (ORCID: https://orcid.org/0000-0001-7761-3727)
- Laurentius Huber (ORCID: https://orcid.org/0000-0002-3291-2202)
- Benedikt Andreas Poser (ORCID: https://orcid.org/0000-0001-8190-4367)
- Stephanie Swegle
- Isabel Gephart
Institutions
- Centre National de la Recherche Scientifique (FR)
- Aarhus University (DK)
- Commissariat à l'Énergie Atomique et aux Énergies Alternatives (FR)
- Université Paris-Saclay (FR)
- German Center for Neurodegenerative Diseases (DE)
- Maastricht University (NL)
- Advanced MRI Technologies (United States) (US)
- Sino-Danish Centre for Education and Research (CN)
- CEA Paris-Saclay (FR)
- Brain Innovation (Netherlands) (NL)
- University of Chinese Academy of Sciences (CN)
- University of California, Berkeley (US)
Publication Details
- Journal
- Magnetic Resonance in Medicine
- Published
- 2025-04-02
- DOI
- https://doi.org/10.1002/mrm.30489
- Citations
- 4
- Primary Topic
- Advanced MRI Techniques and Applications
- Type
- article
- Field-Weighted Citation Impact
- 5.44
Funders
- European Commission
- National Eye Institute