Advanced Analysis of Diffusion Tensor Imaging Along With Machine Learning Provides New Sensitive Measures of Tissue Pathology and Intra-Lesion Activity in Multiple Sclerosis.

diffusion tensor imaging intra-lesion pathology lesions single-shell high angular resolution diffusion imaging support vector machine tractography

Journal

Frontiers in neuroscience
ISSN: 1662-4548
Titre abrégé: Front Neurosci
Pays: Switzerland
ID NLM: 101478481

Informations de publication

Date de publication:
2021
Historique:
received: 26 11 2020
accepted: 15 04 2021
entrez: 24 5 2021
pubmed: 25 5 2021
medline: 25 5 2021
Statut: epublish

Résumé

Tissue pathology in multiple sclerosis (MS) is highly complex, requiring multi-dimensional analysis. In this study, our goal was to test the feasibility of obtaining high angular resolution diffusion imaging (HARDI) metrics through single-shell modeling of diffusion tensor imaging (DTI) data, and investigate how advanced measures from single-shell HARDI and DTI tractography perform relative to classical DTI metrics in assessing MS pathology. We examined 52 relapsing-remitting MS patients who had 3T anatomical brain MRI and DTI. Single-shell HARDI modeling yielded 5 sub-voxel-based metrics, totalling 11 diffusion measures including 4 DTI and 2 tractography metrics. Based on machine learning of 3-dimensional regions of interest, we evaluated the importance of the measures through several tissue classification tasks. These included two within-subject comparisons: lesion versus normal appearing white matter (NAWM); and lesion core versus shell. Further, by stratifying patients as having high (above 75%

Identifiants

pubmed: 34025338
doi: 10.3389/fnins.2021.634063
pmc: PMC8138061
doi:

Types de publication

Journal Article

Langues

eng

Pagination

634063

Informations de copyright

Copyright © 2021 Oladosu, Liu, Pike, Koch, Metz and Zhang.

Déclaration de conflit d'intérêts

The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.

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Auteurs

Olayinka Oladosu (O)

Department of Neuroscience, Faculty of Graduate Studies, University of Calgary, Calgary, AB, Canada.
Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada.

Wei-Qiao Liu (WQ)

Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada.
Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.

Bruce G Pike (BG)

Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada.
Department of Radiology, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.

Marcus Koch (M)

Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada.
Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.

Luanne M Metz (LM)

Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada.
Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.

Yunyan Zhang (Y)

Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada.
Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.
Department of Radiology, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.

Classifications MeSH