Data/hora: 08/06/2024 02:39:46

Provedor de dados: | Anais da Academia Brasileira de Ciências
País: | Brazil
Título: | Correlation between voxel based morphometry and manual volumetry in magnetic resonance images of the human brain
Autores: | Uchida,Ricardo R.; Del-Ben,Cristina M.; Araújo,David; Busatto-Filho,Geraldo; Duran,Fábio L.S.; Crippa,José A.S.; Graeff,Frederico G.
Data: | 2008-03-01
Ano: | 2008
Palavras-chave: | Magnetic resonance imaging; Manual volumetry; Voxel based morphometry.
Resumo: | This is a comparative study between manual volumetry (MV) and voxel based morphometry (VBM) as methods of evaluating the volume of brain structures in magnetic resonance images. The volumes of the hippocampus and the amygdala of 16 panic disorder patients and 16 healthy controls measured through MV were correlated with the volumes of gray matter estimated by optimized modulated VBM. The chosen structures are composed almost exclusively of gray matter. Using a 4 mm Gaussian filter, statistically significant clusters were found bilaterally in the hippocampus and in the right amygdala in the statistical parametric map correlating with the respective manual volume. With the conventional 12 mm filter,a significant correlation was found only for the right hippocampus. Therefore,narrowfilters increase the sensitivity of the correlation procedure, especially when small brain structures are analyzed. The two techniques seem to consistently measure structural volume.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652008000100010
Editor: | Academia Brasileira de Ciências
Relação: | 10.1590/S0001-37652008000100010
Formato: | text/html
Fonte: | Anais da Academia Brasileira de Ciências  v.80 n.1 2008
Fonte: | info:eu-repo/semantics/openAccess