Accurate ODF Reconstruction in Q-ball Imaging
نویسندگان
چکیده
منابع مشابه
ACCURATE ODF RECONSTRUCTION IN Q-BALL IMAGING By
Introduction: Q-ball imaging (Tuch 2004) is a high angular resolution diffusion MR imaging technique proven successful in resolving multiple intravoxel fiber orientations. Standard computations of the orientation distribution function (ODF, the probability of diffusion in a given direction) from q-ball use radial projections and do not consider the solid angle, resulting in distributions differ...
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Q-ball imaging (QBI) is a high angular resolution diffusion imaging (HARDI) technique which has been proven very successful in resolving multiple intravoxel fiber orientations in MR images. The standard computation of the orientation distribution function (ODF, the probability of diffusion in a given direction) from q-ball uses linear radial projection, neglecting the change in the volume eleme...
متن کاملMultiple Q-Shell ODF Reconstruction in Q-Ball Imaging
Q-ball imaging (QBI) is a high angular resolution diffusion imaging (HARDI) technique which has been proven very successful in resolving multiple intravoxel fiber orientations in MR images. The standard computation of the orientation distribution function (ODF, the probability of diffusion in a given direction) from q-ball uses linear radial projection, neglecting the change in the volume eleme...
متن کاملA linear and regularized ODF estimation algorithm to recover multiple fibers in Q-Ball imaging
Due the well-known limitations of diffusion tensor imaging (DTI), high angular resolution diffusion imaging is currently of great interest to characterize voxels containing multiple fiber crossings. In particular, Q-ball imaging (QBI) is now a popular reconstruction method to obtain the orientation distribution function (ODF) of these multiple fiber distributions. The latter captures all import...
متن کاملQ-ball imaging.
Magnetic resonance diffusion tensor imaging (DTI) provides a powerful tool for mapping neural histoarchitecture in vivo. However, DTI can only resolve a single fiber orientation within each imaging voxel due to the constraints of the tensor model. For example, DTI cannot resolve fibers crossing, bending, or twisting within an individual voxel. Intravoxel fiber crossing can be resolved using q-s...
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ژورنال
عنوان ژورنال: NeuroImage
سال: 2009
ISSN: 1053-8119
DOI: 10.1016/s1053-8119(09)70131-4