Abstract #4529

Quantitative Susceptibility Mapping of Hockey Players After Mild Traumatic Brain Injury

Anna Pukropski¹, Alexander Weber¹, Michael Jarrett¹, Christian Kames², Shiroy Dadachanji, David K. B. Li³, Jack Taunton⁴, and Alexander Rauscher⁵

¹Pediatrics, University of British Columbia, Vancouver, BC, Canada, ²University of British Columbia, Vancouver, BC, Canada, ³Radiology, University of British Columbia, Vancouver, BC, Canada, ⁴Division of Sports Medicine, University of British Columbia, Vancouver, BC, Canada, ⁵Pediatrics, University of British Columbia, BC, Canada

We followed 45 varsity hockey players during one season of play, and scanned all players at the beginning of the season. 11 players received a concussion, and were scanned within 72hrs post-concussion, and then again after 2 weeks and 2 months. Quantitative Susceptibility Maps were created from the multi-echo 3D gradient-echo data, and susceptibility values were measured in deep grey matter (caudate, pallidum, putamen, and thalamus) and frontal and posterior WM in the corpus callosum (genu and splenium). A linear mixed-effect model analysis of the regions of interest revealed no significant changes over time compared to baseline.

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