A New Tensorial Framework for Single-Shell High Angular Resolution Diffusion Imaging
نویسندگان
چکیده
منابع مشابه
Converting Multi-Shell and Diffusion Spectrum Imaging to High Angular Resolution Diffusion Imaging
Multi-shell and diffusion spectrum imaging (DSI) are becoming increasingly popular methods of acquiring diffusion MRI data in a research context. However, single-shell acquisitions, such as diffusion tensor imaging (DTI) and high angular resolution diffusion imaging (HARDI), still remain the most common acquisition schemes in practice. Here we tested whether multi-shell and DSI data have conver...
متن کاملDiffusion Simulation Tractography for High Angular Resolution Diffusion Imaging
Introduction While the standard diffusion tensor imaging (DTI) approach has proven to be a valuable tool in detecting local tissue structure and reconstructing neural fiber networks in brain, it cannot accurately reveal the white matter structure in the presence of multiple fiber orientations within a single voxel. In particular, for crossed fibers, the second-order diffusion tensor model fails...
متن کاملISMI: a classification index for high angular resolution diffusion imaging
Diffusion MRI allows the examination of neuronal pathways in vivo. In contrast to diffusion tensor imaging (DTI) high angular resolution diffusion imaging (HARDI) [5,6] is able to reconstruct more than one fiber population within a voxel. HARDI-based tractography approaches need to identify voxels with multiple diffusion directions. In addition, fiber integrity information is vital in neuro-app...
متن کاملVisualization Tools for High Angular Resolution Diffusion Imaging
There is a major effort in medical imaging to develop algorithms to extract information from DTI and HARDI, which provide detailed information on brain integrity and connectivity. As the images have recently advanced to provide extraordinarily high angular resolution and spatial detail, including an entire manifold of information at each point in the 3D images, there has been no readily availab...
متن کاملTwo Canonical Representations for Regularized High Angular Resolution Diffusion Imaging
Two canonical representations for regularization of unit sphere functions encountered in the context of high angular resolution diffusion imaging (HARDI) are discussed. One of these is based on spherical harmonic decomposition, and its one-parameter extension via Tikhonov regularization. This case is well-established, and is mainly reviewed for the sake of completeness. The second one is new, a...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Mathematical Imaging and Vision
سال: 2010
ISSN: 0924-9907,1573-7683
DOI: 10.1007/s10851-010-0217-3