Results 21 to 30 of about 343,323 (262)

Connectome analysis with diffusion MRI in idiopathic Parkinson's disease: Evaluation using multi-shell, multi-tissue, constrained spherical deconvolution. [PDF]

Neuroimage Clin, 2018
Parkinson's disease (PD) is a progressive neurodegenerative disorder that affects extensive regions of the central nervous system. In this work, we evaluated the structural connectome of patients with PD, as mapped by diffusion-weighted MRI tractography ...
Kamagata K, Zalesky A, Hatano T, Di Biase MA, El Samad O, Saiki S, Shimoji K, Kumamaru KK, Kamiya K, Hori M, Hattori N, Aoki S, Pantelis C.   +12 more
europepmc   +2 more sources

Spherical-deconvolution informed filtering of tractograms changes laterality of structural connectome

NeuroImage
Diffusion MRI-driven tractography, a non-invasive technique that reveals how the brain is connected, is widely used in brain lateralization studies.
Yifei He, Yoonmi Hong, Ye Wu
doaj   +4 more sources

White matter organization in developmental coordination disorder: A pilot study exploring the added value of constrained spherical deconvolution. [PDF]

Neuroimage Clin, 2019
Previous studies of white matter organization in sensorimotor tracts in developmental coordination disorder (DCD) have adopted diffusion tensor imaging (DTI), a method unable to reconcile pathways with ‘crossing fibres’. In response to limitations of the
Hyde C, Fuelscher I, Enticott PG, Jones DK, Farquharson S, Silk TJ, Williams J, Caeyenberghs K.   +7 more
europepmc   +2 more sources

Improvement in White Matter Tract Reconstruction with Constrained Spherical Deconvolution and Track Density Mapping in Low Angular Resolution Data: A Pediatric Study and Literature Review. [PDF]

Front Pediatr, 2017
IntroductionDiffusion-weighted magnetic resonance imaging (DW-MRI) allows noninvasive investigation of brain structure in vivo. Diffusion tensor imaging (DTI) is a frequently used application of DW-MRI that assumes a single main diffusion direction per ...
Toselli B, Tortora D, Severino M, Arnulfo G, Canessa A, Morana G, Rossi A, Fato MM.   +7 more
europepmc   +2 more sources

Deep Constrained Spherical Deconvolution for Robust Harmonization. [PDF]

Proc SPIE Int Soc Opt Eng, 2023
Diffusion weighted magnetic resonance imaging (DW-MRI) captures tissue microarchitecture at millimeter scale. With recent advantages in data sharing, large-scale multi-site DW-MRI datasets are being made available for multi-site studies. However, DW-MRI suffers from measurement variability (e.g., inter- and intra-site variability, hardware performance,
Yao T, Rheault F, Cai LY, Nath V, Asad Z, Newlin N, Cui C, Deng R, Ramadass K, Schilling K, Landman BA, Huo Y.   +11 more
europepmc   +4 more sources

The Effect of Gradient Nonlinearities on Fiber Orientation Estimates From Spherical Deconvolution of Diffusion Magnetic Resonance Imaging Data [PDF]

Human Brain Mapping, 2021
Alberto De Luca, Fenghua Guo, Chantal Tax   +2 more
exaly   +2 more sources

Equivariant Spherical Deconvolution: Learning Sparse Orientation Distribution Functions from Spherical Data. [PDF]

Inf Process Med Imaging, 2021
We present a rotation-equivariant unsupervised learning framework for the sparse deconvolution of non-negative scalar fields defined on the unit sphere. Spherical signals with multiple peaks naturally arise in Diffusion MRI (dMRI), where each voxel consists of one or more signal sources corresponding to anisotropic tissue structure such as white matter.
Elaldi A, Dey N, Kim H, Gerig G.
europepmc   +5 more sources

Patient-specific structural connectomic differences of deep brain stimulation targets in treatment-resistant obsessive-compulsive disorder patients. [PDF]

Transl Psychiatry
Deep brain stimulation (DBS) is an established therapy for treatment-resistant obsessive-compulsive disorder (trOCD), yet clinical outcomes vary. This is partly due to differential cortico-striato-thalamo-cortical networks (CSTC) engagement across ...
Marquez-Franco R, Ruelas L, Loução R, Schmahl R, Cid Rodríguez FX, Heiden P, Kuhn J, Koy A, Visser-Vandewalle V, Andrade P.   +9 more
europepmc   +2 more sources

Half Way There: Theoretical Considerations for Power Laws and Sticks in Diffusion MRI for Tissue Microstructure

Mathematics, 2021
In this article, we consider how differing approaches that characterize biological microstructure with diffusion weighted magnetic resonance imaging intersect.
Matt G. Hall, Carson Ingo
doaj   +1 more source

Deconvolution of spherical data corrupted with unknown noise

Electronic Journal of Statistics, 2023
We consider the deconvolution problem for densities supported on a $(d-1)$-dimensional sphere with unknown center and unknown radius, in the situation where the distribution of the noise is unknown and without any other observations. We propose estimators of the radius, of the center, and of the density of the signal on the sphere that are proved ...
Capitao-Miniconi, Jérémie, Gassiat, Élisabeth   +1 more
openaire   +4 more sources