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Docteur de l'université Automatic Segmentation and Shape Analysis ...

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LISTE DES FIGURES xvii<br />

5.6 The accuracy of the disease classification using bagged support vector<br />

machines (SVMs) with varying thresholds in the l<strong>and</strong>mark selection<br />

on a separated testing set. . . . . . . . . . . . . . . . . . . . 125<br />

5.7 The out-of-bag (OOB) estimates of sensitivity of the disease classification<br />

using bagged support vector machines (SVMs) with varying<br />

thresholds in the l<strong>and</strong>mark selection. . . . . . . . . . . . . . . . . . 126<br />

5.8 The sensitivity of the disease classification using bagged support<br />

vector machines (SVMs) with varying thresholds in the l<strong>and</strong>mark<br />

selection on a separated testing set. . . . . . . . . . . . . . . . . . . 127<br />

5.9 The out-of-bag (OOB) estimates of specificity of the disease classification<br />

using bagged support vector machines (SVMs) with varying<br />

thresholds in the l<strong>and</strong>mark selection. . . . . . . . . . . . . . . . . . 128<br />

5.10 The specificity of the disease classification using bagged support<br />

vector machines (SVMs) with varying thresholds in the l<strong>and</strong>mark<br />

selection on a separated testing set. . . . . . . . . . . . . . . . . . . 129<br />

5.11 Bar plots of Spearman’s ρ of the correlation between the memory<br />

indices <strong>and</strong> the principal components from each mo<strong>de</strong>l. . . . . . . . 130<br />

5.12 Variation mo<strong>de</strong>s captured by Principal Component <strong>Analysis</strong> (PCA)<br />

on hippocampal subregions best correlated to memory indices (logical<br />

memory, AVLT, ADAS memory), color-co<strong>de</strong>d map showing the<br />

magnitu<strong>de</strong> of variation <strong>de</strong>scribed by the mo<strong>de</strong>. . . . . . . . . . . . . 131<br />

5.13 Three-dimensional representation of hippocampal subfields by La<br />

Joie et al., 2010 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132<br />

5.14 The variation along the direction of mean difference between the<br />

normal control (NC) group <strong>and</strong> the Alzheimer’s disease (AD) group,<br />

rigidly aligned mo<strong>de</strong>l. . . . . . . . . . . . . . . . . . . . . . . . . . . 134<br />

5.15 The variation along the direction of mean difference between the<br />

normal control (NC) group <strong>and</strong> the Alzheimer’s disease (AD) group,<br />

similarity aligned mo<strong>de</strong>l. . . . . . . . . . . . . . . . . . . . . . . . . 135

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