Detection of Concussion Using Cranial Accelerometry

作者：Auerbach Paul S^*; Baine Jennifer G; Schott Megan L; Greenhaw Amy; Acharya Monika G; Smith Wade S

来源：Clinical Journal of Sport Medicine, 2015, 25(2): 126-132.

DOI：10.1097/jsm.0000000000000117

• concussion
• accelerometry
• head injury
• traumatic brain injury
• football

Objective: To determine whether skull motion produced by pulsatile cerebral blood flow, as measured by cranial accelerometry, is altered during concussion.
Design: In phase 1, to identify a specific pattern indicative of concussion, cranial accelerometry of subjects who sustained a concussion underwent analysis of waveforms, which was compared with accelerometry from subjects without a concussion (baseline). In phase 2, this concussion pattern was tested against prospectively acquired, blinded data.
Setting: High school tackle football practice and game play.
Participants: Eighty-four football players.
Interventions: Subjects had accelerometry measurements and concurrent 2-lead electrocardiograms. In players with a concussion, multiple sequential measurements were obtained. Sport Concussion Assessment Tool 2 was used to assist clinical determination of concussion.
Main Outcome Measures: Whether a characteristic waveform pattern of cranial accelerometry occurs in subjects with concussion.
Results: Phase 1 demonstrated a consistent pattern correlated to concussion. Phase 2 found this pattern in 10 of 13 subjects with concussion (76.9% sensitivity). Seventy-nine of 82 baseline plus nine postseason (total = 91) recordings from nonconcussed subjects did not show the concussion pattern (87% specificity).
Conclusions: In subjects with concussion, we observed a unique pattern determined by cranial accelerometry. This may provide a method to noninvasively detect and longitudinally observe concussion.

• 出版日期2015-3