New Zealand will have first use of the world's first portable brain scanner that could change how concussion is diagnosed for rugby players – but will it work as said? 

The device —known as the Nurocheck headset— can allegedly detect head injuries in two minutes. 

Medtech Labs Group CEO Michael Lee says although the brain scanner will be rolled out next month, rugby clubs will have to wait a little longer. 

Sports injury research specialist Dr Doug King told Francesca Rudkin while the concept it legitimate, the research backing it is not.  

He says concussions are one of the most complex things you can try and detect, and while this could be realistic in the future, the science just isn’t there yet. 

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