Abstract
OBJECTIVE: This study evaluated the concordance between the Deformable Anatomic Template (DAT)-identified origin of motor hand fibers and localization of the motor cortex of the hand by functional magnetic resonance imaging (fMRI). METHODS: Preoperative fMRI during hand motor tasks was performed on 36 hemispheres in 26 patients with gliomas in or near eloquent areas. Reformatted volume-rendered surface images were labeled with the DAT's hand motor fibers and fMRI data. Five reviewers assessed the data for concordance. RESULTS: Available fMRI data were diagnostically usable in 92% (33/36 analyzed hemispheres), with DAT anatomic accuracy in the remaining cases. The DAT prediction and fMRI findings were concordant in all 9 normal hemispheres and in 20 (83%) of 24 glioma-bearing hemispheres. The 4 discordant cases resulted from substantial mass effect by large frontal tumors. CONCLUSIONS: This study validated DAT's anatomic atlas and alignment process for the expected position of the motor cortex of the hand.
Original language | English (US) |
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Pages (from-to) | 280-284 |
Number of pages | 5 |
Journal | Journal of computer assisted tomography |
Volume | 36 |
Issue number | 2 |
DOIs | |
State | Published - 2012 |
Keywords
- brain atlas
- brain mapping
- functional magnetic resonance imaging
- glial tumor
- mass effect
ASJC Scopus subject areas
- Radiology Nuclear Medicine and imaging