ArticleMagnetic resonance imaging2019
A fiber coherence index for quality control of B-table orientation in diffusion MRI scans.
Article in Magnetic resonance imaging, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 62 papers, 1 of them a synthesis that pooled it.
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Who cites it
62 citing papers in PubMed, 1 synthesis or guideline pooled it.
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- Considerations and recommendations from the ISMRM diffusion study group for preclinical diffusion MRI: Part 1: In vivo small-animal imaging.Magnetic resonance in medicine · 2025Review
- Neural pathways underlying the production of pitch and rhythm in aphasia.Annals of the New York Academy of Sciences · 2025Article
- Considerations and recommendations from the ISMRM Diffusion Study Group for preclinical diffusion MRI: Part 3-Ex vivo imaging: Data processing, comparisons with microscopy, and tractography.Magnetic resonance in medicine · 2025Review
- Brain functional and structural alteration following acute carbon monoxide poisoning contribute to delayed neurological sequelae.Scientific reports · 2025Article
- Early subacute frontal callosal microstructure and language outcomes after stroke.Brain communications · 2025Article
- Sex differences in pain perception and modulation in the brain: effects of insular cortex stimulation on chronic pain relief.Brain communications · 2025Article
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- The Relationship between White Matter Architecture and Language Lateralization in the Healthy Brain.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2024Article
2 more citing papers are in PubMed but not listed here.
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8 authors.
Funding
Abstract
purposeThe diffusion MRI "b-vector" table describing the diffusion sensitization direction can be flipped and permuted in dimension due to different orientation conventions used in scanners and incorrect or improperly utilized file formats. This can lead to incorrect fiber orientation estimates and subsequent tractography failure. Here, we present an automated quality control procedure to detect when the b-table is flipped and/or permuted incorrectly.
methodsWe define a "fiber coherence index" to describe how well fibers are connected to each other, and use it to automatically detect the correct configuration of b-vectors. We examined the performance on 3981 research subject scans (Baltimore Longitudinal Study of Aging), 1065 normal subject scans of high image quality (Human Connectome Project), and 202 patient scans (Vanderbilt University Medical Center), as well as 9 in-vivo and 9 ex-vivo animal data.
resultsThe coherence index resulted in a 99.9% (3979/3981) and 100% (1065/1065) success rate in normal subject scans, 98% (198/202) in patient scans, and 100% (18/18) in both in-vivo and ex-vivo animal data in detecting the correct gradient table in datasets without severe image artifacts. The four failing cases (4/202) in patient scans, and two failures in healthy subject scans (2/3981), all showed prominent motion or signal dropout artifacts.
conclusionsThe fiber coherence measure can be used as an automatic quality assurance check in any diffusion analysis pipeline. Additionally, the success of this fiber coherence measure suggests potential broader applications, including evaluating data quality, or even providing diagnostic value as a biomarker of white matter integrity.
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