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English to Portuguese translations [PRO]
Medical - Medical (general) | | English term or phrase: diffuse tensor imaging studies | | There is growing interest in newer brain-imaging techniques, such as diffuse tensor and diffusion-weighted imaging studies in patients with MS. These imaging techniques are useful in extracting subtle pathological change in normal-appearing brain tissue. Fein-stein et al. studied 62 subjects with MS, using BDI-II and MRI scans. Whole-brain and regional volumes were calculated for lesions and Normal-Appearing Gray Matter (NAGM) and White Matter (NAWM). Depressed patients (N 30) had more hypointense lesions in the right medial inferior frontal region, less NAWM in the left superior frontal region, and lower fractional anisotropy and higher mean diffusivity in the left anterior-temporal NAWM and NAGM, respectively. They also had higher mean diffusivity in right inferior frontal hyperintense lesions. These data suggest that patients with MS and depression have higher lesion volumes and brain atrophy in frontal and temporal regions. Changes in NAGM and NAWM suggest subtle brain pathology in frontal and temporal areas. |
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Fabio Hirata
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