Page 308 - MEGIN Book Of Abstracts - 2023

Traumatic Brain Injury

MEG measured delta waves increase in adolescents the mean differences between preseason and postsea-
after concussion (2022) son scans for the three groups of players, with pairwise
comparisons based on Student's t-test method.
Davenport, Elizabeth M; Urban, Jillian E; Vaughan,
Christopher; DeSimone, Jesse C; Wagner, Ben; Espeland, RESULTS Players with concussions had significantly
Mark A; Powers, Alexander K; Whitlow, Christopher T; increased delta wave power at their postseason scans
Stitzel, Joel D; Maldjian, Joseph A than nonconcussed players (p = .018) and controls
(p = .027).
Department of Radiology, University of Texas Southwestern
Medical Center, Dallas, Texas; Virginia Tech-Wake Forest CONCLUSION We demonstrate that a single concus-
School of Biomedical Engineering, Wake Forest School of sion during the season in adolescent subjects can
Medicine, Winston-Salem, North Carolina; Department of increase MEG measured delta frequency power at their
Neurosurgery, Wake Forest School of Medicine, Winston- postseason scan. This adds to the growing body of
Salem, North Carolina; Department of Radiology-Neuroradi- literature indicating increased delta power following a
ology, Wake Forest School of Medicine, Winston-Salem, North concussion.
Carolina; Clinical and Translational Science Institute, Wake
Forest School of Medicine, Winston-Salem, North Carolina; Keywords: concussion, delta waves, football, magnetoen-
Division of Pediatric Neuropsychology, Children's National cephalography (MEG)
Health System, Washington, District of Columbia; Division of
Gerontology and Geriatric Medicine, Wake Forest School of Brain and behavior (2022), Vol. 12, No. 9 (36053126) (1
Medicine, Winston-Salem, North Carolina citation)

INTRODUCTION The purpose of this study is to deter-
mine if delta waves, measured by magnetoencepha- Memory retrieval brain-behavior
lography (MEG), increase in adolescents due to a sports disconnection in mild traumatic brain injury: A
concussion. magnetoencephalography and diffusion tensor
imaging study (2022)
METHODS Twenty-four adolescents (age 14-17) com-
pleted pre- and postseason MRI and MEG scanning. Hung, Yuwen; Vandewouw, Marlee; Emami, Zahra; Bells,
MEG whole-brain delta power was calculated for each Sonya; Rudberg, Nicole; da Costa, Leodante; Dunkley,
subject and normalized by the subject's total power. Benjamin T
In eight high school football players diagnosed with a
concussion during the season (mean age = 15.8), pre- Program in Neurosciences & Mental Health, Hospital for
season delta power was subtracted from their postsea- Sick Children Research Institute, Toronto, Ontario, Canada;
son scan. In eight high school football players without Institute of Biomedical Engineering, University of Toronto,
a concussion (mean age = 15.7), preseason delta Toronto, Ontario, Canada; Health Sciences, Western Uni-
power was subtracted from postseason delta power versity, London, Ontario, Canada; Department of Surgery,
and in eight age-matched noncontact controls (mean Division of Neurosurgery, Sunnybrook Hospital, Toronto,
age = 15.9), baseline delta power was subtracted from a Ontario, Canada; Department of Medical Imaging, University
4-month follow-up scan. ANOVA was used to compare of Toronto, Toronto, Ontario, Canada

 ontents  Index 287
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