Produção Nacional
Revisado por pares
The corpus callosum in Binswanger's disease: A quantitative fractional anisotropy analysis
2008; Associação Neurologia Cognitiva e do Comportamento; Volume: 2; Issue: 4 Linguagem: Inglês
10.1590/s1980-57642009dn20400008
ISSN1980-5764
AutoresEliasz Engelhardt, Denise Madeira Moreira, Gilberto Oliveira Alves, Maria Elisa Lanna, Carlos Eduardo de Oliveira Alves, Letice Ericeira-Valente, Felipe Kenji Sudo, Jerson Laks,
Tópico(s)Atomic and Subatomic Physics Research
ResumoAbstract To study the integrity of the corpus callosum in Binswanger's disease (BD) patients using quantitative fractional anisotropy (DTI-FA). Methods: Controls (12) and patients with BD (12) were included. MR [GE Signa Horizon-1.5T] scans were performed. BD patients presented Fazekas's score=6 and leukoaraiosis extension ³75%, as assessed on FLAIR sequence. Standard parameters for DTI-FA acquisition were used. Functool was employed for post-processing, and ROIs placed on the genu and splenium of the corpus callosum on one axial plane at the basal ganglia level. Statistics [ANOVA] for genu and splenium comparison were analyzed. Results: DTI-FA showed reduction of anisotropy in both regions of the corpus callosum, more prominently in anterior (genu) than posterior (splenium) in BD patients versus controls. Conclusion: The reduction of anisotropy reflects loss of integrity of fibers of the studied regions of the corpus callosum. This finding indicates an interruption of the most important inter-hemispheric commissure, and component of neural networks that underlies cognitive, behavioral, motor and sensory integration. The affected genu and splenium, together with damage to other fiber systems that connect the prefrontal and parietal-occipital regions, may manifest clinically as dysfunction of high-level integrative regions linked to the domains of executive and sensory functions, respectively, that can occur in Binswanger's disease.
Referência(s)