MEG and DTI of Neural Function and Connectivity in Traumatic Brain Injury
Completed
Conditions studied: Traumatic Brain Injury, Post-concussive Symptoms
In brief
The overall hypothesis is that the long-term cognitive and behavioral sequelae of traumatic brain injury (TBI) are due to selective disruption of the long association white matter tracts of the cerebral hemispheres, with resulting functional impairment of the network of cortical regions that are interconnected by these long-range association pathways. We propose that traumatic white matter injury can be measured with diffusion tensor imaging (DTI) and that the impaired cortical activation can be detected with magnetoencephalography (MEG), and that the results of these imaging examinations will correlate with neurocognitive status and functional recovery after TBI.
Key facts
- Study ID
- NCT01298557
- Run by
- University of California, San Francisco
- People needed
- 69
- Starts
- 2007-02-01
- Expected to finish
- 2013-02-01
- Last updated by the study team
- 2018-12-04
Who can join
Age: 18 and older, up to 50. Sex: any. Healthy volunteers: accepted.
You may qualify if…
- 18-50 years of age
- single episode of blunt traumatic brain injury
- symptoms of persistent post-concussive syndrome present an average of 4 months to 4 years since date of injury
- fluency in English (cognitive battery not available in other languages)
- capable of self-consent
You may not qualify if…
- < 18 years or > 50 years of age
- pregnancy
- history of previous TBI with loss of consciousness
- alcoholism as evidenced by Audit questionnaire
- regular use of illicit drugs
- non-English fluency
- significant psychiatric history excluding mild depression or anxiety disorder any contraindication to MRI, including claustrophobia, pregnancy, any trauma or surgery which may have left ferromagnetic material in the body, ferromagnetic implants or pacemakers; and inability to lie still for 1 hour or more
Where it is running
- San Francisco General Hospital — San Francisco, California, United States
Full record on ClinicalTrials.gov
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