ArticleMagnetic resonance in medicine2022
Phase-based masking for quantitative susceptibility mapping of the human brain at 9.4T.
Article in Magnetic resonance in medicine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed, 8 citations in OpenAlex.
- Recommended implementation of quantitative susceptibility mapping for clinical research in the brain: A consensus of the ISMRM electro-magnetic tissue properties study group.Magnetic resonance in medicine · 2024Article
- Improved dynamic distortion correction for fMRI using single-echo EPI and a readout-reversed first image (REFILL).Human brain mapping · 2023Article
Corrections and comments
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Authors and funding
6 authors at 2 institutions in 3 countries.
Funding
Abstract
purposeTo develop improved tissue masks for QSM.
methodsMasks including voxels at the brain surface were automatically generated from the magnitude alone (MM) or combined with test functions from the first (PG) or second (PB) derivative of the sign of the wrapped phase. Phase images at 3T and 9.4T were simulated at different TEs and used to generate a mask, P
resultsClose to air cavities, phase wraps became denser with increasing field and echo time, yielding increased values of the test functions. Compared with P
conclusionAutomatic, phase-based masking founded on the second derivative of the sign of the wrapped phase, including cortical voxels at the brain surface, was able to mitigate artifacts and restore QSM contrast across cortical and subcortical brain regions.
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Registered trials
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