UPDATE 1-NFL, GE to study brain injuries as concussion worries mount

* To spend $40 million on brain imaging * Another $20 million for research fund * Seek to improve diagnosis, treatment of brain injuries By Jonathan Allen NEW YORK, March 11 (Reuters) – The National Football League and General Electric Co are teaming up to improve the diagnosis and treatment of brain injuries amid growing concerns about sports-related concussions in youth and professional sports. …