MEG and DTI of Neural Function and Connectivity in Traumatic Brain Injury
| Status: | Completed |
|---|---|
| Conditions: | Hospital, Neurology |
| Therapuetic Areas: | Neurology, Other |
| Healthy: | No |
| Age Range: | 18 - 50 |
| Updated: | 12/6/2018 |
| Start Date: | February 2007 |
| End Date: | February 2013 |
Magnetoencephalography and High-Field Diffusion Tensor Magnetic Resonance Imaging of Neural Function and Connectivity in Traumatic Brain Injury
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.
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.
Inclusion Criteria:
- 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
Exclusion Criteria:
- < 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
We found this trial at
1
site
San Francisco General Hospital San Francisco General Hospital and Trauma Center (SFGH) is an essential...
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