Project Cerebro: An evaluation of blast gauges in the Australian Defence Force

Background: Blast-related Traumatic Brain Injury (TBI) has been a frequent and prominent wound in recent conflicts. Helmet sensors or blast gauges have been proposed to monitor blast effects in troops exposed to Improvised Explosive Devices (IED). Purpose: The findings of a trial of blast gauges in Australian troops deployed in Afghanistan are described. Materials and methods: Three Blackbox Biometrics B3 Blast Gauge (BG) were issued to soldiers from September 2012 to December 2013, with data regularly downloaded by deployed personnel from DiggerWorks. Results: A total of 1,474 blast events (with 68 suspected 'false' events) were recorded by the 4,513 sets issued. The trial identified and documented that personnel are exposed to potentially harmful blast effects in operational and non-operational combat related activities, with the latter being more frequent. Conclusion: While soldier acceptance of the BGs was good, evaluation of their utility was limited by local operational factors. Further use of the BG system was recommended, including collaboration with allied nations to plan future research.