Results 41 to 50 of about 1,179,474 (190)
European Journal of Radiology Open, 2018 Tractography studies for pre-surgical planning of primary brain tumors is typically done using diffusion tensor imaging (DTI), which cannot resolve crossing, kissing or highly angulated fibres.
Joao Leote +4 more
doaj +1 more source
Axon radius measurements in vivo from diffusion MRI: A feasibility study [PDF]
, 2007 This paper investigates the feasibility of using diffusion MRI to measure axon-cell dimensions in the white matter of live subjects. A simple geometric model of white-matter tissue provides an expression that relates the axon radius to the diffusion MRI ...
Daniel C. Alexander, Alexander, DC
core +1 more source
Advanced Science, EarlyView.DDSurfer reconstructs cortical surfaces directly from diffusion MRI without requiring T1‐weighted scans. By fusing complementary microstructural features and learning diffeomorphic deformations, it efficiently generates accurate white matter and pial surfaces, improving geometric fidelity and morphometric reliability across datasets for robust surface ...
Chengjin Li +10 more
wiley +1 more source
Probabilistic Anatomical Connectivity Derived from the Microscopic Persistent Angular Structure of Cerebral Tissue [PDF]
, 2005 Recently developed methods to extract the persistent angular structure (PAS) of axonal fibre bundles from diffusion-weighted magnetic resonance imaging (MRI) data are applied to drive probabilistic fibre tracking, designed to provide estimates of ...
Parker, Geoffrey J M +3 more
core +1 more source
Embarrassingly Parallel Acceleration of Global Tractography via Dynamic Domain Partitioning
Frontiers in Neuroinformatics, 2016 Global tractography estimates brain connectivity by organizing signal-generating fiber segments in an optimal configuration that best describes the measured diffusion-weighted data, promising better stability than local greedy methods with respect to ...
Haiyong Wu +6 more
doaj +1 more source
Scoping literature review: Comparing MRI tractography methods for optic radiation analysis
The Anatomical Record, EarlyView.Abstract Accurate tractography mapping of the optic radiations is essential to avoiding post‐operative visual field deficits in patients undergoing temporal lobe surgery. This literature review highlights the current landscape of MRI tractography methods that are used to delineate the optic radiations (ORs), with a particular focus on the anterior ...
Hriday Sahni +3 more
wiley +1 more source
Sensitivity analysis of human brain structural network construction [PDF]
Network Neuroscience, 2017 Network neuroscience leverages diffusion-weighted magnetic resonance imaging and tractography to quantify structural connectivity of the human brain. However, scientists and practitioners lack a clear understanding of the effects of varying tractography ...
Kuang Wei +4 more
doaj +1 more source
Anatomical Sciences Education, EarlyView.Abstract The study of neuroanatomy is fundamental in many scientific fields. Despite this, it is a challenging subject for students. As technology evolves, it is being increasingly incorporated into educational methods, including the teaching of neuroanatomy. Three‐dimensional (3D) visualizations are well suited for displaying neuroanatomy.
Merlin J. Fair +5 more
wiley +1 more source
White matter tracts in first-episode psychosis: a DTI tractography study of the uncinate fasciculus. [PDF]
, 2008 A model of disconnectivity involving abnormalities in the cortex and connecting white matter pathways may explain the symptoms and cognitive abnormalities of schizophrenia.
Cercignani, M +31 more
core +1 more source
NeuroImage, 2020 Diffusion MRI tractography processing pipeline requires a large number of steps (typically 20+ steps). If parameters of these steps, number of threads, and random seed generators are not carefully controlled, the resulting tractography can easily be non ...
Guillaume Theaud +5 more
doaj +1 more source