Relaxed Alert Electroencephalography Screening for Mild Traumatic Brain Injury in Athletes
This study was designed as a proof-of-principle feasibility trial for
athletic trainers at a sports facility to generate electroencephalograms (EEGs)
from student athletes for discriminating (mTBI) associated EEGs from uninjured
ones. A total of 47 EEGs were generated, with 30 athletes recruited at baseline
(BL) pre-season, after a concussive injury (IN), and post-season (PS). Outcomes
included: 1) visual analyses of EEGs by a neurologist; 2) support vector machine
(SVM) classification for inferences about whether particular groups belonged to
the three subgroups of BL, IN, or PS; and 3) analyses of EEG synchronies
including phase locking value (PLV) computed between pairs of distinct
electrodes. All EEGs were visually interpreted as normal. SVM classification
showed that BL and IN could be discriminated with 81% accuracy using
features of EEG synchronies combined. Frontal inter-hemispheric phase
synchronization measured by PLV was significantly lower in the IN group. It is
feasible for athletic trainers to record high quality EEGs from student
athletes. Also, spatially localized metrics of EEG synchrony can discriminate
mTBI associated EEGs from control EEGs. [...] Georg Thieme Verlag Rüdigerstraße 14, 70469 Stuttgart,
GermanyArticle in Thieme eJournals: Table of contents | Abstract | Full text
Source: International Journal of Sports Medicine - Category: Sports Medicine Authors: Abdul Baki, Samah Zakeri, Zohreh Chari, Geetha Fenton, Andr é Omurtag, Ahmet Tags: Clinical Sciences Source Type: research