Primary progressive aphasia patients evaluated using diffusion tensor imaging and voxel based volumetry-preliminary results

There are individuals who have a progressive language deficit without presenting cognitive deficits in other areas. One of the diseases related to this presentation is primary progressive aphasia (PPA). OBJECTIVE: Identify by means of diffusion tensor imaging (DTI) and measurements of cortical volume, brain areas that lead to dysphasia when presenting signs of impaired connectivity or reduced volume. METHOD: Four patients with PPA were evaluated using DTI, and measurements of cortical volumes in temporal areas. These patients were compared with two normal volunteers. RESULTS: There is a trend to a difference in the number and volume of related fibers between control group and patients with PPA. Comparing cortical volumes in temporal areas between groups yielded a trend to a smaller volume in PPA patients. CONCLUSION: Patients with PPA have a trend to impairment in cortical and subcortical levels regarding relevant areas.

Bibliographic Details

Main Authors:	Oliveira,Fábio Pascotto de, Costa,Jaderson Costa da, Marroni,Sabine Possa, Silva,Ana Maria Marques da, Barreiro,Sthefanie Hansen, Maeda,Fábio Kunihiro, Portuguez,Mirna Wetters
Format:	Digital revista
Language:	English
Published:	Academia Brasileira de Neurologia - ABNEURO 2011
Online Access:	http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0004-282X2011000400007
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