title: Automatic classification of segmented MRI data combining Independent Component Analysis and Support Vector Machines.
abstract: This paper proposes a novel method for automatic classification of magnetic resonance images (MRI) based on independent component analysis (ICA). Our methodology consists of three processing steps. First, all the MRI scans are normalized and segmented into gray matter, white matter and cerebrospinal fluid. Then, ICA is applied to the preprocessed images for extracting relevant features which will be used as inputs to a support vector machine (SVM) classifier in order to reduce the feature space dimensionality. The system discriminates between Alzheimer's disease (AD) patients, mild cognitive impairment (MCI), and normal control (NC) subjects. All MRI data used in this work were obtained from the Alzheimers Disease Neuroimaging Initiative (ADNI). The experimental results showed that our methodology can successfully discriminate AD and MCI patients from NC subjects.
authors.affiliation: Dpt. Signal Theory, Networking and Communications, University of Granada, Spain.
authors.forename: Laila
authors.initials: L
authors.lastname: Khedher
authors.affiliation: Dpt. Signal Theory, Networking and Communications, University of Granada, Spain.
authors.forename: Javier
authors.initials: J
authors.lastname: Ramírez
authors.affiliation: Dpt. Signal Theory, Networking and Communications, University of Granada, Spain.
authors.forename: Juan Manuel
authors.initials: JM
authors.lastname: Górriz
authors.affiliation: Dpt. Signal Theory, Networking and Communications, University of Granada, Spain.
authors.forename: Abdelbasset
authors.initials: A
authors.lastname: Brahim
mesh_terms: D002555:Cerebrospinal Fluid / Q000000981:diagnostic imaging; D003936:Diagnosis, Computer-Assisted; D001330:Electronic Data Processing / Q000379:methods*; D066128:Gray Matter / Q000000981:diagnostic imaging; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D008279:Magnetic Resonance Imaging / Q000145:classification*; D001523:Mental Disorders / Q000175:diagnosis*; D066127:White Matter / Q000000981:diagnostic imaging