The DOI matches its Crossref record; 4 of the 4 references it cites were found in a registry or an index.
Diffusion-Tensor Imaging Implicates Prefrontal Axonal Injury in Executive Function Impairment Following Very Mild Traumatic Brain Injury
Abstract
PURPOSE: To determine whether frontal white matter diffusion abnormalities can help predict acute executive function impairment after mild traumatic brain injury (mTBI). MATERIALS AND METHODS: This study had institutional review board approval, included written informed consent, and complied with HIPAA. Diffusion-tensor imaging and standardized neuropsychologic assessments were performed in 20 patients with mTBI within 2 weeks of injury and 20 matched control subjects. Fractional anisotropy (FA) and mean diffusivity (MD) images (imaging parameters: 3.0 T, 25 directions, b = 1000 sec/mm(2)) were compared by using whole-brain voxelwise analysis. Spearman correlation analyses were performed to evaluate associations between diffusion measures and executive function. RESULTS: Multiple clusters of lower frontal white matter FA, including the dorsolateral prefrontal cortex (DLPFC), were present in patients (P < .005), with several clusters also demonstrating higher MD (P < .005). Patients performed worse on tests of executive function. Lower DLPFC FA was significantly correlated with worse executive function performance in patients (P < .05). CONCLUSION: Impaired executive function following mTBI is associated with axonal injury involving the DLPFC.
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Metadata
- Authors
- Lipton, M. L., Gulko, E., Zimmerman, M. E., Friedman, B. W., Kim, M., Gellella, E., Gold, T., Shifteh, K., Ardekani, B. A., & Branch, C. A.
- Venue
- Radiology
- Published
- 2009-09
- Volume
- 252
- Issue
- 3
- Pages
- 816-824
- ISSN
- 0033-8419 (ISSN-L)
- 1527-1315
- OpenAlex
- W2108029018
- Cited by
- 290
- References
- 4
- FWCI
- 15.83
- Type
- journal article
- Language
- en
- Open access
- closed
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