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Erschienen in: Neuroradiology 2/2009

01.02.2009 | Diagnostic Neuroradiology

Support vector machine-based classification of Alzheimer’s disease from whole-brain anatomical MRI

verfasst von: Benoît Magnin, Lilia Mesrob, Serge Kinkingnéhun, Mélanie Pélégrini-Issac, Olivier Colliot, Marie Sarazin, Bruno Dubois, Stéphane Lehéricy, Habib Benali

Erschienen in: Neuroradiology | Ausgabe 2/2009

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Abstract

Purpose

We present and evaluate a new automated method based on support vector machine (SVM) classification of whole-brain anatomical magnetic resonance imaging to discriminate between patients with Alzheimer’s disease (AD) and elderly control subjects.

Materials and methods

We studied 16 patients with AD [mean age ± standard deviation (SD) = 74.1 ± 5.2 years, mini-mental score examination (MMSE) = 23.1 ± 2.9] and 22 elderly controls (72.3 ± 5.0 years, MMSE = 28.5 ± 1.3). Three-dimensional T1-weighted MR images of each subject were automatically parcellated into regions of interest (ROIs). Based upon the characteristics of gray matter extracted from each ROI, we used an SVM algorithm to classify the subjects and statistical procedures based on bootstrap resampling to ensure the robustness of the results.

Results

We obtained 94.5% mean correct classification for AD and control subjects (mean specificity, 96.6%; mean sensitivity, 91.5%).

Conclusions

Our method has the potential in distinguishing patients with AD from elderly controls and therefore may help in the early diagnosis of AD.
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Metadaten
Titel
Support vector machine-based classification of Alzheimer’s disease from whole-brain anatomical MRI
verfasst von
Benoît Magnin
Lilia Mesrob
Serge Kinkingnéhun
Mélanie Pélégrini-Issac
Olivier Colliot
Marie Sarazin
Bruno Dubois
Stéphane Lehéricy
Habib Benali
Publikationsdatum
01.02.2009
Verlag
Springer-Verlag
Erschienen in
Neuroradiology / Ausgabe 2/2009
Print ISSN: 0028-3940
Elektronische ISSN: 1432-1920
DOI
https://doi.org/10.1007/s00234-008-0463-x

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