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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Bibliographic Details
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
Subjects
Algorithms
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Summary: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.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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content type line 14
ISSN:1053-8119
1095-9572
DOI:10.1016/S1053-8119(09)70440-9