Abstract #2072

Longitudinal Cognitive Performance and Cerebral Perfusion in High and Low-Contact Sport Athletes

Mahta Karimpoor¹, Hossein Moein Taghavi¹, Yixin Wang¹, Marios Georgiadis¹, Sohrab Sami¹, Jessica Alexandria Towns², Nicholas Cecchi², Brian Mills¹, Maged Goubran³, Max Wintermark¹, Greg Zaharchuk¹, Moss Zhao¹, Gerald Grant⁴, David Benjamin Camarillo², and Michael Zeineh¹

¹Radiology, Stanford University, Stanford, CA, United States, ²Bioengineering, Stanford University, Stanford, CA, United States, ³Medical Biophysics, University of Toronto, Toronto, ON, Canada, ⁴Neurosurgery, Stanford University, Stanford, CA, United States

Synopsis

Keywords: Traumatic Brain Injury, Traumatic brain injury, cerebral perfusion

Motivation: Head impact in contact sports is linked to long-term cognitive decline, but etiology and mechanism remain unclear.

Goal(s): To define the relationship between longitudinal cognitive performance and cerebral blood flow associated with high-contact sports.

Approach: We assessed longitudinal cerebral blood flow and cognitive performance in collegiate athletes using arterial spin labeling (ASL) and the ImPACT test.

Results: Visual motor speed declined over time in high-contact athletes. Significant CBF-time interactions indicate decreasing occipital CBF and higher thalamic CBF are associated with declining visual motor speed. Visual and verbal memory decline and symptoms over time are associated with higher deep-gray CBF.

Impact: This research provides critical insights into how cerebral blood flow patterns are associated with cognitive performance and symptom progression in high-contact athletes.

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