In order to examine the potential long-term consequences of concussion, Nathan Churchhill, PhD, of St. Michael’s Hospital in Toronto, ON, Canada and colleagues used multi-modal MRI to describe abnormalities of structure and function in the brain — including cerebral blood flow, cortical volume, and white matter microstructure — of 43 college athletes (21 male, 22 female). Twenty-one participants had a history of concussion and 22 did not based on baseline assessment with the Sport Concussion Assessment Tool 3 (SCAT3).