Results 41 to 50 of about 45,799 (233)
Diffusion MR tractography of the heart [PDF]
Journal of Cardiovascular Magnetic Resonance, 2009 Histological studies have shown that the myocardium consists of an array of crossing helical fiber tracts. Changes in myocardial fiber architecture occur in ischemic heart disease and heart failure, and can be imaged non-destructively with diffusion-encoded MR.
Wedeen, Van J. +4 more
openaire +6 more sources
Neuromodulation: Technology at the Neural Interface, EarlyView., 2021 Abstract Objectives Central poststroke pain (CPSP), a neuropathic pain condition, is difficult to treat. Repetitive transcranial magnetic stimulation (rTMS) targeted to the primary motor cortex (M1) can alleviate the condition, but not all patients respond. We aimed to assess a promising alternative rTMS target, the secondary somatosensory cortex (S2),
Juhani Ojala +10 more
wiley +1 more source
Frontiers in Neuroscience, 2019 BackgroundOptic radiation (OR) tractography may help predict and reduce post-neurosurgical visual field deficits. OR tractography methods currently lack pediatric and surgical focus.PurposeWe propose a clinically feasible OR tractography strategy in a ...
Joseph Yuan-Mou Yang +25 more
doaj +1 more source
TWO-TENSOR FIBER TRACTOGRAPHY [PDF]
2007 4th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, 2007 Estimating white matter fiber pathways from a diffusion tensor MRI dataset has many important applications in medical research. However, the standard approach of performing tracking on single-tensor estimates per voxel is confounded by regions of multiple pathways in different directions.
Bergmann, Ørjan +3 more
openaire +3 more sources
CTtrack: A CNN+Transformer-based framework for fiber orientation estimation & tractography
Neuroscience Informatics, 2022 In recent years, multiple data-driven fiber orientation distribution function (fODF) estimation algorithms and automatic tractography pipelines have been proposed to address the limitations of traditional methods. However, these approaches lack precision
S.M.H. Hosseini +5 more
doaj +1 more source
Connectivity of the Superficial Muscles of the Human Perineum: A Diffusion Tensor Imaging-Based Global Tractography Study. [PDF]
Despite the importance of pelvic floor muscles, significant controversy still exists about the true structural details of these muscles. We provide an objective analysis of the architecture and orientation of the superficial muscles of the perineum using
Cory, Esther +6 more
core +1 more source
QuickBundles, a Method for Tractography Simplification [PDF]
Frontiers in Neuroscience, 2012 Diffusion MR data sets produce large numbers of streamlines which are hard to visualize, interact with, and interpret in a clinically acceptable time scale, despite numerous proposed approaches. As a solution we present a simple, compact, tailor-made clustering algorithm, QuickBundles (QB), that overcomes the complexity of these large data sets and ...
Eleftherios eGaryfallidis +5 more
openaire +3 more sources
Mapping the subcortical connectome using in vivo diffusion MRI: Feasibility and reliability
NeuroImage, 2022 Tractography combined with regions of interest (ROIs) has been used to non-invasively study the structural connectivity of the cortex as well as to assess the reliability of these connections.
Jason Kai +3 more
doaj +1 more source
Test-retest reliability of structural brain networks from diffusion MRI [PDF]
Structural brain networks constructed from diffusion MRI (dMRI) and tractography have been demonstrated in healthy volunteers and more recently in various disorders affecting brain connectivity.
Bastin, Mark E. +4 more
core +1 more source
Brainstem Diffusion Tensor Tractography and Clinical Applications in Pain
Frontiers in Pain Research, 2022 The brainstem is one of the most vulnerable brain structures in many neurological conditions, such as pain, sleep problems, autonomic dysfunctions, and neurodegenerative disorders.
Yu Zhang +4 more
doaj +1 more source