Results 91 to 100 of about 21,775 (214)

Tubes or Ribbons? Comparing Texture‐space Visualization for Multivariate Line Data

open access: yesComputer Graphics Forum, EarlyView.
Abstract Multivariate line data is critical for analyzing flow fields, agent systems, and dynamic trajectories. Embedding secondary variables along spatial paths using surface‐based primitives such as ribbons and circular tubes introduces challenges related to perspective, scale, and distortion.
B. Russig   +3 more
wiley   +1 more source

Massive Particles for Brain Tractography [PDF]

open access: yes, 2010
We propose a method for estimating axonal fiber connectivity pathways (cerebral connectivity fibers) from Multi-Tensor Diffusion Magnetic Resonance Imaging (MTD-MRI). Our method uses multiple local orientation information provided by MTD-MRI for leading stochastic walks of particles.
Ramón Aranda   +4 more
openaire   +1 more source

Muscle morphology and intramuscular fat after treatment‐as‐usual including botulinum neurotoxin A injections in children with cerebral palsy

open access: yesDevelopmental Medicine &Child Neurology, EarlyView.
Normalized muscle volume remained unchanged in all evaluated muscles after the 12‐month treatment‐as‐usual in children with cerebral palsy. Higher intramuscular fat fraction was observed in the medial gastrocnemius, suggesting concurrent intramuscular fat infiltration.
Zhongzheng Wang   +7 more
wiley   +1 more source

Addressing the path-length-dependency confound in white matter tract segmentation.

open access: yesPLoS ONE, 2014
We derive the Iterative Confidence Enhancement of Tractography (ICE-T) framework to address the problem of path-length dependency (PLD), the streamline dispersivity confound inherent to probabilistic tractography methods.
Matthew G Liptrot   +2 more
doaj   +1 more source

Evaluation of corpus callosum lesions following intracranial tumors by using magnetic resonance tractography and diffusion tensor imaging

open access: yesUkrainian Neurosurgical Journal, 2015
Introduction. The results of the evaluation of data MR tractography and DTI in patients with brain tumors that spread to the area of the corpus callosum (CC) were presented.Materials and methods.
Kristiana Robak
doaj   +1 more source

Network‐level disconnectivity tracks poststroke depressive symptom improvement

open access: yesPsychiatry and Clinical Neurosciences, EarlyView.
Aims Poststroke depression is the most common psychological condition following a stroke and can severely impact outcome. However, the neurobiological biomarkers associated with recovery of poststroke depression remain unclear. In this longitudinal observational study, we set out to investigate the effect of lesion‐induced focal damage and network ...
Aleksi J. Sihvonen   +6 more
wiley   +1 more source

Evaluating Human Perception Thresholds in Magnetic Stimulation Using Experimental Measurements and Modelling

open access: yesBioelectromagnetics, Volume 47, Issue 6, September 2026.
ABSTRACT This preregistered study investigated whether induced electric fields alone could predict human perception thresholds in magnetic stimulation. Using a figure‐of‐eight magnetic coil placed on the forearm, perception thresholds were collected from 24 healthy participants using the method of adjustment in 12 stimulation conditions. Subject‐fitted,
Otto Kangasmaa, Ilkka Laakso
wiley   +1 more source

The challenge of mapping the human connectome based on diffusion tractography

open access: yesNature Communications, 2017
Though tractography is widely used, it has not been systematically validated. Here, authors report results from 20 groups showing that many tractography algorithms produce both valid and invalid bundles.
Klaus H. Maier-Hein   +76 more
doaj   +1 more source

Conus Medullaris Teratoma with Utilization of Fiber Tractography: Case Report

open access: yesJournal of Neurological Surgery Reports, 2015
Objective Conus medullaris teratomas are very rare tumors. Traditional preoperative diagnosis depended on the findings from magnetic resonance imaging (MRI).
Fahad Alkherayf   +2 more
doaj   +1 more source

Four Directions, One Solution: Enabling Rapid Diffusion Tensor MRI for Ultra‐Low Field Using Deep Learning

open access: yesMagnetic Resonance in Medicine, Volume 96, Issue 3, Page 1413-1426, September 2026.
ABSTRACT Purpose This study revisits the tetrahedral encoding strategy originally proposed to accelerate Diffusion Tensor Magnetic Resonance Imaging (DT‐MRI) by reducing the requisite number of diffusion‐weighted measurements to four. We examine its practical limitations and explore how artificial intelligence (AI) can extend its utility. Specifically,
Joshua Mawuli Ametepe   +4 more
wiley   +1 more source

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