detection precoce d'alzheimer Lead Investigator: Amira Echtioui Institution : ATMS - ENIS E-Mail : echtiouiamira@yahoo.fr Proposal ID : 1210 Proposal Description: The research objectives: - detection of Alzheimer's disease - specify the markings of this disease - identify an interval that classifies atrophy - segmentation of brain tissue by the SPM12 method of matlab, - Segmentation of brain tissue by other methods such as kmeans, FCM, ... Data: fMRI and DTI Extension: .nii Number of patients: 20 alzheimer AD patients, 20 CN healthy patients and 20 patients with normal cognitive impairment MCI. I prefer that patients be 10 men and 10 women and having different ages in each type. And I also want if possible that the patient has several images at different dates. Thinks in advance