Cited by 36Dementia and Cognitive Impairment ResearchMedical Image Segmentation TechniquesAlzheimer's disease research and treatments

Study the Longitudinal in vivo and Cross-Sectional ex vivo Brain Volume Difference for Disease Progression and Treatment Effect on Mouse Model of Tauopathy Using Automated MRI Structural Parcellation

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Ma, Da, Holmes, Holly E., Cardoso, Manuel J., Modat, Marc, Harrison, Ian F., Powell, Nick M., O’Callaghan, James M., Ismail, Ozama +7 more·2019·Frontiers in Neuroscience

Abstract

Brain volume measurements extracted from structural MRI data sets are a widely-accepted neuroimaging biomarker to study mouse models of neurodegeneration. Whether to acquire and analyse data in vivo or ex vivo is a crucial decision during the phase of experimental designs, as well as data analysis. In this work, we extracted the brain structures for both longitudinal in vivo and single-time-point ex vivo MRI acquired from the same animals using accurate automatic multi-atlas structural parcellation, and compared the corresponding statistical and classification analysis. We found that most grey matter structures volumes decrease from in vivo to ex vivo, while most white matter structures volume increase. The level of structural volume change also varies between different genetic strains and treatment. In addition, we showed superior statistical and classification power of ex vivo data compared to the in vivo data, even after resampled to the same level of resolution. We further demonstrated that the classification power of the in vivo data can be improved by incorporating longitudinal information, which is not possible for ex vivo data. In conclusion, this paper demonstrates the tissue-specific changes, as well as the difference in statistical and classification power, between the volumetric analysis based on the in vivo and ex vivo structural MRI data. Our results emphasise the importance of longitudinal analysis for in vivo data analysis.

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Crossref · 10.3389/fnins.2019.00011

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  • Previous DTI studies assessing microstructural changes in rTg4510 mice produced conflicting results.

    “Previous DTI studies assessing microstructural changes in rTg4510 mice, which express transgenic tau P301L mutations driven by a Ca 2+ / calmodulin kinase II promoter system [30,31] in the white and grey matter produced conflicting results [33][34][35][36].”

    From Diffusion tensor imaging reveals whole-brain microstructural changes in the P301L mouse model of tauopathy. (2020) · cites this paper as [34]

    The Introduction describes inconsistent findings about volume changes between in vivo and ex vivo imaging, not conflicting DTI findings in rTg4510 mice. The Experimental Data section identifies the mouse model, but neither it nor the additional passages retrieved for DTI and microstructural changes addresses the attributed claim. No page numbers were provided in our copy. (LLM, conf=0.76)

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Authors
Ma, D., Holmes, H. E., Cardoso, M. J., Modat, M., Harrison, I. F., Powell, N. M., O’Callaghan, J. M., Ismail, O., Johnson, R. A., O’Neill, M. J., Collins, E. C., Beg, M. F., Popuri, K., Lythgoe, M. F., & Ourselin, S.
Affiliations
  • Simon Fraser University (CA)
  • University College London (GB)
  • King's College London (GB)
  • Eli Lilly (United States) (US)
  • Eli Lilly (United Kingdom) (GB)
Corresponding author
Ma, Da
Venue
Frontiers in Neuroscience
Published
2019-01-24
Volume
13
Pages
11-11
ISSN
1662-453X (ISSN-L)
OpenAlex
W2914916753
Cited by
36
References
82
Citations by year
2026: 3 · 2025: 5 · 2024: 6 · 2023: 4 · 2022: 5 · 2021: 3 · 2020: 8 · 2019: 1 · 2018: 1
FWCI
3.39
Type
journal article
Language
en
Open access
Locations
  • Frontiers in Neuroscience (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • UCL Discovery (University College London) (submittedVersion)
  • Research Portal (King's College London) (submittedVersion, other-oa)
Funders
  • National Centre for the Replacement, Refinement and Reduction of Animals in Research (NC/K500276/1)
  • Medical Research Council (MR/J500422/1, MR/G0900207-3/1, MR/J01107X/1, MR/K026739/1)
  • Engineering and Physical Sciences Research Council (EP/H046410/1, EP/J020990/1, EP/K005278, 000012287)
  • University College London (PR/ylr/18575)
  • National Institute for Health Research (BW.mn.BRC10269)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Medical Image Segmentation Techniques
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
Keywords
tauopathy, brain volume, gray matter volume, white matter volume, disease progression, treatment effects, longitudinal analysis, genetic strain differences

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