TY - JOUR PY - 2015// TI - Long-term structural changes after mTBI and their relation to post-concussion symptoms JO - Brain injury A1 - Dean, Philip J. A. A1 - Sato, Joao Ricardo A1 - Vieira, Gilson A1 - McNamara, Adam A1 - Sterr, Annette SP - ePub EP - ePub VL - ePub IS - ePub N2 - PRIMARY OBJECTIVE: To investigate sustained structural changes in the long-term (>1 year) after mild traumatic brain injury (mTBI) and their relationship to ongoing post-concussion syndrome (PCS). RESEARCH DESIGN: Morphological and structural connectivity magnetic resonance imaging (MRI) data were acquired from 16 participants with mTBI and nine participants without previous head injury. MAIN OUTCOMES AND RESULTS: Participants with mTBI had less prefrontal grey matter and lower fractional anisotropy (FA) in the anterior corona radiata and internal capsule. Furthermore, PCS severity was associated with less parietal lobe grey matter and lower FA in the corpus callosum.

CONCLUSIONS: There is evidence for both white and grey matter damage in participants with mTBI over 1 year after injury. Furthermore, these structural changes are greater in those that report more PCS symptoms, suggesting a neurophysiological basis for these persistent symptoms.

Language: en

LA - en SN - 0269-9052 UR - http://dx.doi.org/10.3109/02699052.2015.1035334 ID - ref1 ER -