Results 21 to 30 of about 12,725 (195)

FIESTA: Autoencoders for accurate fiber segmentation in tractography

NeuroImage, 2023
White matter bundle segmentation is a cornerstone of modern tractography to study the brain's structural connectivity in domains such as neurological disorders, neurosurgery, and aging. In this study, we present FIESTA (FIbEr Segmentation in Tractography using Autoencoders), a reliable and robust, fully automated, and easily semi-automatically ...
Félix Dumais, Jon Haitz Legarreta, Carl Lemaire, Philippe Poulin, François Rheault, Laurent Petit, Muhamed Barakovic, Stefano Magon, Maxime Descoteaux, Pierre-Marc Jodoin   +9 more
openaire   +4 more sources

Deep Brain Stimulation Reduces Conflict‐Related Theta and Error‐Related Negativity in Patients With Obsessive–Compulsive Disorder

Neuromodulation: Technology at the Neural Interface, EarlyView., 2021
Abstract Objectives Obsessive–compulsive disorder (OCD) is a psychiatric disorder with alterations of cortico‐striato‐thalamo‐cortical loops and impaired performance monitoring. Electrophysiological markers such as conflict‐related medial frontal theta (MFT) and error‐related negativity (ERN) may be altered by clinically effective deep brain ...
Elena Sildatke, Theo O. J. Gruendler, Markus Ullsperger, Till A. Dembek, Juan Carlos Baldermann, Sina Kohl, Veerle Visser‐Vandewalle, Daniel Huys, Jens Kuhn, Thomas Schüller   +9 more
wiley   +1 more source

Quantitative Analysis in Cervical Spinal Cord Injury Patients Using Diffusion Tensor Imaging and Tractography [PDF]

Annals of Rehabilitation Medicine, 2022
Objective To investigate the clinical usefulness of diffusion tensor imaging (DTI) and tractography in the prediction of outcomes after traumatic cervical spinal cord injury (SCI) and to assess whether the predictability is different between DTI and ...
Geun Seok Park, Tae Uk Kim, Seong Jae Lee, Jung Keun Hyun, Seo Young Kim   +4 more
doaj   +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, Haiyong Wu, Geng Chen, Yan Jin, Dinggang Shen, Dinggang Shen, Pew-Thian Yap   +6 more
doaj   +1 more source

Using mesoscopic tract-tracing data to guide the estimation of fiber orientation distributions in the mouse brain from diffusion MRI

NeuroImage, 2023
Diffusion MRI (dMRI) tractography is the only tool for non-invasive mapping of macroscopic structural connectivity over the entire brain. Although it has been successfully used to reconstruct large white matter tracts in the human and animal brains, the ...
Zifei Liang, Tanzil Mahmud Arefin, Choong H. Lee, Jiangyang Zhang   +3 more
doaj   +1 more source

3D stochastic completion fields for fiber tractography [PDF]

2009 IEEE Computer Society Conference on Computer Vision and Pattern Recognition Workshops, 2009
We approach the problem of fiber tractography from the viewpoint that a computational theory should relate to the underlying quantity that is being measured - the diffusion of water molecules. We characterize the Brownian motion of water by a 3D random walk described by a stochastic non-linear differential equation.
Parya Momayyez, Kaleem Siddiqi
openaire   +1 more source

Evaluation of tractogram filtering methods using human-like connectome phantoms

NeuroImage, 2023
Tractography algorithms are prone to reconstructing spurious connections. The set of streamlines generated with tractography can be post-processed to retain the streamlines that are most biologically plausible.
Tabinda Sarwar, Kotagiri Ramamohanarao, Alessandro Daducci, Simona Schiavi, Robert E. Smith, Andrew Zalesky   +5 more
doaj   +1 more source

Performance of unscented Kalman filter tractography in edema: Analysis of the two-tensor model

NeuroImage: Clinical, 2017
Diffusion MRI tractography is increasingly used in pre-operative neurosurgical planning to visualize critical fiber tracts. However, a major challenge for conventional tractography, especially in patients with brain tumors, is tracing fiber tracts that ...
Ruizhi Liao, Lipeng Ning, Zhenrui Chen, Laura Rigolo, Shun Gong, Ofer Pasternak, Alexandra J. Golby, Yogesh Rathi, Lauren J. O’Donnell   +8 more
doaj   +1 more source

Applications of MR fiber tractography imaging in multiple scleros

The Egyptian Journal of Radiology and Nuclear Medicine, 2015
Aim of the study: To evaluate role of fiber tractography in the assessment of white matter (WM) fiber tract affection in patient with multiple sclerosis (MS).
Lamiaa El-Sourgy, Nermin Ahmad, Mohamed El-Rakhawy, Mohamed Gomaa, Mohamed Abo Hegazi   +4 more
doaj   +1 more source

Deterministic diffusion fiber tracking improved by quantitative anisotropy. [PDF]

PLoS ONE, 2013
Diffusion MRI tractography has emerged as a useful and popular tool for mapping connections between brain regions. In this study, we examined the performance of quantitative anisotropy (QA) in facilitating deterministic fiber tracking.
Fang-Cheng Yeh, Timothy D Verstynen, Yibao Wang, Juan C Fernández-Miranda, Wen-Yih Isaac Tseng   +4 more
doaj   +1 more source