Multi-site single-subject t1-weighted phantom reveals how tissue-specific non-biological intensity non-uniformity biases tissue segmentation in SPM5 and CIVET

The impact of tissue non-uniformity on gray matter density was assessed at each vertex of the cortical surface using the linear model: GM Density ~ (WM/GM tissue contrast) + (WM/GM average intensity) The percent of gray matter density variance explained by the model was measured at each vertex and a...

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Published inNeuroImage (Orlando, Fla.) Vol. 47; p. S72
Main Authors Lyttelton, OC, Evans, AC
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier Inc 01.07.2009
Elsevier Limited
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Abstract The impact of tissue non-uniformity on gray matter density was assessed at each vertex of the cortical surface using the linear model: GM Density ~ (WM/GM tissue contrast) + (WM/GM average intensity) The percent of gray matter density variance explained by the model was measured at each vertex and averaged across the surface to generate summary statistics.
AbstractList The impact of tissue non-uniformity on gray matter density was assessed at each vertex of the cortical surface using the linear model: GM Density ~ (WM/GM tissue contrast) + (WM/GM average intensity) The percent of gray matter density variance explained by the model was measured at each vertex and averaged across the surface to generate summary statistics.
Author Lyttelton, OC
Evans, AC
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Title Multi-site single-subject t1-weighted phantom reveals how tissue-specific non-biological intensity non-uniformity biases tissue segmentation in SPM5 and CIVET
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