Journal article
The relationship between cognition and white matter tract damage after mild traumatic brain injury in a premorbidly healthy, hospitalised adult cohort during the post-acute period
Frontiers in neurology, Vol.14, p.1278908
10/23/2023
DOI: 10.3389/fneur.2023.1278908
PMCID: PMC10626495
PMID: 37936919
Abstract
IntroductionRecent developments in neuroimaging techniques enable increasingly sensitive consideration of the cognitive impact of damage to white matter tract (WMT) microstructural organisation after mild traumatic brain injury (mTBI).ObjectiveThis study investigated the relationship between WMT microstructural properties and cognitive performance.Participants, setting and designUsing an observational design, a group of 26 premorbidly healthy adults with mTBI and a group of 20 premorbidly healthy trauma control (TC) participants who were well-matched on age, sex, premorbid functioning and a range of physical, psychological and trauma-related variables, were recruited following hospital admission for traumatic injury.Main measuresAll participants underwent comprehensive unblinded neuropsychological examination and structural neuroimaging as outpatients 6-10 weeks after injury. Neuropsychological examination included measures of speed of processing, attention, memory, executive function, affective state, pain, fatigue and self-reported outcome. The WMT microstructural properties were estimated using both diffusion tensor imaging (DTI) and neurite orientation dispersion and density imaging (NODDI) modelling techniques. Tract properties were compared between the corpus callosum, inferior longitudinal fasciculus, uncinate fasciculus, anterior corona radiata and three segmented sections of the superior longitudinal fasciculus.ResultsFor the TC group, in all investigated tracts, with the exception of the uncinate fasciculus, two DTI metrics (fractional anisotropy and apparent diffusion coefficient) and one NODDI metric (intra-cellular volume fraction) revealed expected predictive linear relationships between extent of WMT microstructural organisation and processing speed, memory and executive function. The mTBI group showed a strikingly different pattern relative to the TC group, with no relationships evident between WMT microstructural organisation and cognition on most tracts.ConclusionThese findings indicate that the predictive relationship that normally exists in adults between WMT microstructural organisation and cognition, is significantly disrupted 6-10 weeks after mTBI and suggests that WMT microstructural organisation and cognitive function have disparate recovery trajectories.
Details
- Title: Subtitle
- The relationship between cognition and white matter tract damage after mild traumatic brain injury in a premorbidly healthy, hospitalised adult cohort during the post-acute period
- Creators
- Jacqueline F. I. Anderson - The University of MelbourneLucy E. Oehr - The University of MelbourneJian Chen - Murdoch Children's Research InstituteJerome J. Maller - Monash Alfred Psychiatry Research centreMarc L. Seal - The University of MelbourneJoseph Yuan-Mou Yang - Murdoch Childrens Res Inst, Dev Imaging, Melbourne, Vic, Australia
- Resource Type
- Journal article
- Publication Details
- Frontiers in neurology, Vol.14, p.1278908
- DOI
- 10.3389/fneur.2023.1278908
- PMID
- 37936919
- PMCID
- PMC10626495
- NLM abbreviation
- Front Neurol
- ISSN
- 1664-2295
- eISSN
- 1664-2295
- Publisher
- Frontiers Media Sa
- Number of pages
- 12
- Grant note
- University of Melbourne Murdoch Children's Research Institute The author(s) declare financial support was received for the research, authorship, and/or publication of this article. This work was supported by The University of Melbourne [2017 MRGSS]. Imaging analysis was conducted within the Developmental Imaging rese RCH1000; RCH2022-1402 / Victorian Government's Operational Infrastructure Support Program - University of Melbourne University of Melbourne, Department of Paediatrics Royal Children's Hospital Foundation
- Language
- English
- Date published
- 10/23/2023
- Academic Unit
- Radiology
- Record Identifier
- 9984848509402771
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