Detection of multiple sclerosis lesions in MRIs with an SVM classifier

Annarita D'Addabbo; Nicola Ancona; Palma N. Blonda; Roberto Alberto De Blasi

doi:10.1117/12.480407

15 May 2003 Detection of multiple sclerosis lesions in MRIs with an SVM classifier

Annarita D'Addabbo, Nicola Ancona, Palma N. Blonda, Roberto Alberto De Blasi

Author Affiliations +

Proceedings Volume 5032, Medical Imaging 2003: Image Processing; (2003) https://doi.org/10.1117/12.480407
Event: Medical Imaging 2003, 2003, San Diego, California, United States

Abstract

The purpose of this paper is to test the effectiveness of a Support Vector Machine (SVM) classifier, with gaussian kernel function, in the automatic detection of small lesions from Magnetic Resonance Images (MRIs) of a patientt affected by multiple sclerosis. The data set consists of Proton Density, T2 (the spin-spin relaxation time) Spin-Echo images and a three-dimensional T1-weighted gradient echo sequence, called Magnetization-Prepared RApid Gradient Echo, that can be generated from contiguous and very thin sections, allowing detection of small lesions typically affected by partial volume effects and intersection gaps in T1 weighted Spin-Echol sequences. In this context of classification, SVM with Gaussian kernel function exhibited a good classification accuracy, higher than accuracies obtained, on the same data set, with a traditional RBF, confirming its high generalization capability and its effectiveness when applied to low-dimensional multi-spectral images.

Citation Download Citation

Annarita D'Addabbo, Nicola Ancona, Palma N. Blonda, and Roberto Alberto De Blasi "Detection of multiple sclerosis lesions in MRIs with an SVM classifier", Proc. SPIE 5032, Medical Imaging 2003: Image Processing, (15 May 2003); https://doi.org/10.1117/12.480407

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