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Classification of brain tumor extracts by high resolution ¹H MRS using partial least squares discriminant analysis BJMBR
Faria,A.V.; Macedo Jr.,F.C.; Marsaioli,A.J.; Ferreira,M.M.C.; Cendes,F..
High resolution proton nuclear magnetic resonance spectroscopy (¹H MRS) can be used to detect biochemical changes in vitro caused by distinct pathologies. It can reveal distinct metabolic profiles of brain tumors although the accurate analysis and classification of different spectra remains a challenge. In this study, the pattern recognition method partial least squares discriminant analysis (PLS-DA) was used to classify 11.7 T ¹H MRS spectra of brain tissue extracts from patients with brain tumors into four classes (high-grade neuroglial, low-grade neuroglial, non-neuroglial, and metastasis) and a group of control brain tissue. PLS-DA revealed 9 metabolites as the most important in group differentiation: γ-aminobutyric acid, acetoacetate, alanine,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Brain; Tumor; Magnetic resonance spectroscopy; Spectroscopy; Metabolism.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2011000200009
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