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Supervised Learning of Functional Maps for Infarct Classification

Mukhopadhyay, Anirban and Oksuz, Ilkay and Tsaftaris, Sotirios A. Supervised Learning of Functional Maps for Infarct Classification. In: Statistical Atlases and Computational Models of the Heart. Imaging and Modelling Challenges. Lecture Notes in Computer Science, 9534 . Springer, pp. 162-170. ISBN 978-3-319-28711-9 (2016)

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Our submission to the STACOM Challenge at MICCAI 2015 is based on the supervised learning of functional map representation between End Systole (ES) and End Diastole (ED) phases of Left Ventricle (LV), for classifying infarcted LV from the healthy ones. The Laplace-Beltrami eigen-spectrum of the LV surfaces at ES and ED, represented by their triangular meshes, are used to compute the functional maps. Multi-scale distortions induced by the mapping, are further calculated by singular value decomposition of the functional map. During training, the information of whether an LV surface is healthy or diseased is known, and this information is used to train an SVM classifier for the singular values at multiple scales corresponding to the distorted areas augmented with surface area difference of epicardium and endocardium meshes. At testing similar augmented features are calculated and fed to the SVM model for classification. Promising results are obtained on both cross validation of training data as well as on testing data, which encourages us in believing that this algorithm will perform favourably in comparison to state of the art methods.

Item Type: Book Section
Identification Number: 10.1007/978-3-319-28712-6_18
Uncontrolled Keywords: Infarct, Cardiac remodeling, Laplace-Beltrami, SV, SVD
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
R Medicine > RZ Other systems of medicine
T Technology > T Technology (General)
Research Area: Computer Science and Applications
Depositing User: Caterina Tangheroni
Date Deposited: 20 Jan 2016 10:27
Last Modified: 06 Apr 2016 10:06
URI: http://eprints.imtlucca.it/id/eprint/3025

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