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Alzheimer's disease (AD) is the most common progressive neurodegenerative disorder. Therefore, early detection and evaluation of prognosis of AD is an important issue in contemporary brain research. Magnetic Resonance Imaging (MRI) provides valuable diagnostic information about AD. In this work, brain tissue is extracted using phase-based level set method. Structure tensor analysis is used to visualize...
Alzheimer's disease (AD) is a progressive neurodegenerative disorder which affects various regions of brain. The primary damage occurs in white matter (WM) tracts leading to disintegration and death of neurons. Diffusion tensor imaging is one of the most widely used techniques to study the microstructural changes in WM. In this work, variations in length of WM tracts for regions associated with emotional...
In this work, sub anatomic regions of brain are studied using diffusion tensor images. Images of normal controls (NC) and Alzheimer disease (AD) subjects were obtained from ADNI database. Volume of four regions (Thalamus, Posterior cingulate, Temporal lobe and Hypothalamus) were estimated by implementing voxel analysis and atlas based approach. All the regions showed a reduction in volume. The variation...
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