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Using susceptibility-weighted imaging to study concussion in college ice hockey players
Date:2/3/2014

Charlottesville, VA (February 4, 2014). Using susceptibility-weighted imaging (SWI), researchers have identified microstructural changes in the brains of male and female college-level ice hockey players that could be due to concussive or subconcussive trauma. Until now, SWI has been used to detect signs of more severe cases of traumatic brain injury (TBI). This is the first time SWI has been used to detect signs of concussion (or mild TBI), and the first time it has been used to detect changes in the brain prospectively over an entire sports season in athletes of both sexes. The researchers, hailing from several institutions,1 describe and discuss their findings in "Hockey Concussion Education Project, Part 1. Susceptibility-weighted imaging study in male and female ice hockey players over a single season. Clinical article," by Karl G. Helmer and colleagues, published online today, ahead of print, in the Journal of Neurosurgery. Two additional papers from the Hockey Concussion Education Project (HCEP) on imaging techniques used to detect and follow concussion's effects are also being published today.2

Susceptibility-weighted imaging (SWI) is a high-resolution three-dimensional gradient-echo magnetic resonance imaging (MRI) technique that is particularly sensitive to the presence of blood and blood-breakdown products. SWI can be used to detect cerebral microbleeds, which are small hemorrhages that appear hypointense (contrasting to the appearance of other parts of the brain) on T2*-weighted magnetic resonance images. These microbleeds are often the result of traumatic brain injuries (TBIs). Until now SWI has been used to detect microbleeds larger than 5 millimetersoften a sign of severe TBI. In this study, Helmer and colleagues used SWI to detect clusters of much smaller cerebral microbleedsones that are too small to be seen with the naked eye but could represen
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Contact: Jo Ann M. Eliason
jaeliason@thejns.org
434-962-1425
Journal of Neurosurgery Publishing Group
Source:Eurekalert

Page: 1 2 3 4

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