New technology could help advance blood biomarker capabilities for improved diagnosis, treatment and prognosis of traumatic brain injury (TBI). An estimated 1.7 million Americans suffer a traumatic brain injury each year, and an estimated 5.3 million individuals -- approximately two percent of the U.S. population -- are living with disability as a result of TBI. Traumatic brain injuries can occur from even the slightest bump or blow to the head.