Abstract #3006

Magnetic resonance elastography of repeated head impacts: Mechanical properties of the brain in collegiate hockey players

Daniel R Smith¹, Melissa DiFabio², Peyton Delgorio¹, Elizabeth Paige Dickinson¹, Thomas Buckley², and Curtis L Johnson¹

¹Biomedical Engineering, University of Delaware, Newark, DE, United States, ²Kinesiology and Applied Physiology, University of Delaware, Newark, DE, United States

In this study, we use magnetic resonance elastography (MRE) to examine the effects of a season of collegiate hockey on brain biomechanics to better understand the neurological impact of traumatic brain injury. We scanned 13 collegiate-level hockey players at four time points over the course over year using MRE to quantify the possible changes to the viscoelastic mechanical properties caused by repeated head impacts. We discovered that both stiffness and damping ratio changed over the course of the hockey season and then had some recovery after the season, indicating a complex pathology that can be quantified with MRE.

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