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Abstract #3366

Decrease in myelin water fraction of global white matter and white matter tracts in traumatic brain injury (TBI).

Bretta Russell-Schulz1, Irene Vavasour2, Jing Zhang2, Alex MacKay1,3, Shaun Porter4, Delrae Fawcett5, Ivan Torres5, William Panenka5, Lara Boyd6, and Naznin Virji-Babul4

1UBC MRI Research Centre, Radiology, University of British Columbia, Vancouver, BC, Canada, 2Radiology, University of British Columbia, Vancouver, BC, Canada, 3Physics & Astronomy, University of British Columbia, Vancouver, BC, Canada, 4Physical Therapy, University of British Columbia, Vancouver, Canada, 5Psychiatry, University of British Columbia, Vancouver, Canada, 6Physical Therapy, University of British Columbia, Vancouver, BC, Canada

Chronic traumatic brain injury (TBI) was examined using myelin water fraction (MWF) in global white matter and tracts for subjects undergoing intensive cognitive training (Arrowsmith Program) compared to age and gender matched controls. MWF was significantly lower in TBI subjects and correlations were found between MWF and cognitive scores of fluid and crystallized ability. However, after 3 months of cognitive training no significant differences were found in MWF in TBI subjects.

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