Estimating fiber orientation distribution from diffusion MRI with spherical needlets

Diffusion-weighted MRI (D-MRI) (Le  Bihan et al., 2001; Mori, 2007) has become a widely used, non-invasive tool for clinical and experimental neuroscience due to its capability of characterizing tissue microstructure in vivo by measuring the diffusion displacement of water molecules. Specifically, high angular resolution diffusion imaging (HARDI) enables extraction of accurate and detailed information about fiber tract directions through measurements made along a large number of gradient directions (Tuch et al., 2002).

Source: Medical Image Analysis - February 7, 2018 Category: Radiology Authors: Hao Yan, Owen Carmichael, Debashis Paul, Jie Peng, Alzheimer ’s Disease Neuroimaging Initiative Source Type: research