Results 41 to 50 of about 372,517 (152)

Atlas-Guided Tractography for Segmentation of Striatal Subregions in Early Parkinson’s Disease [PDF]

BIO Web of Conferences
Parkinson’s disease (PD) and isolated REM sleep behaviour disorder (iRBD) are neurodegenerative conditions associated with alterations in the striatum, a subcortical structure essential for motor and cognitive functions. In this study, we apply diffusion
Bublíková Iva, Krajča Tomáš, Mareček Stanislav, Dušek Petr, Krupička Radim   +4 more
doaj   +1 more source

Three-Dimensional Identification of the Frontal Aslant Tract in the Human Brain: Tractography Study

Brain Sciences
Background: The frontal aslant tract (FAT) is a white matter pathway associated with language and executive functions. The aim of the study was to identify and analyze this tract using DTI tractography.
Sara Kierońska-Siwak, Hanna Mackiewicz-Nartowicz, Anna Sinkiewicz, Agata Kozakiewicz-Rutkowska, Alina Jaroch, Marietta Bracha, Beata Zwierko, Dariusz Grzanka   +7 more
doaj   +1 more source

Diffusion Imaging of Cerebral White Matter in Persons Who Stutter: Evidence for Network-Level Anomalies

Frontiers in Human Neuroscience, 2014
Deficits in brain white matter have been a main focus of recent neuroimaging studies on stuttering. However, no prior study has examined brain connectivity on the global level of the cerebral cortex in persons who stutter (PWS).
Shanqing eCai, Jason A. Tourville, Deryk S. Beal, Joseph S. Perkell, Frank H. Guenther, Satrajit S. Ghosh   +5 more
doaj   +1 more source

Reproducibility of thalamic segmentation based on probabilistic tractography

NeuroImage, 2010
Reliable identification of thalamic nuclei is required to improve targeting of electrodes used in Deep Brain Stimulation (DBS), and for exploring the role of thalamus in health and disease. A previously described method using probabilistic tractography to segment the thalamus based on connections to cortical target regions was implemented. Both within-
Catherine R. Traynor, Rolf A. Heckemann, Alexander Hammers, Jonathan O'Muircheartaigh, William R. Crum, Gareth J. Barker, Mark P. Richardson   +6 more
openaire   +3 more sources

Probabilistic tractography in the ventrolateral thalamic nucleus: cerebellar and pallidal connections [PDF]

Brain Structure and Function, 2020
AbstractThe ventrolateral thalamic nucleus (VL), as part of the ‘motor thalamus’, is main relay station of cerebellar and pallidal projections. It comprises anterior (VLa) and posterior (VLpd and VLpv) subnuclei. Though the fibre architecture of cerebellar and pallidal projections to of the VL nucleus has already been focus in a numerous amount of in ...
Pelzer, Esther A., Pauls, K. Amande M., Braun, Nina, Tittgemeyer, Marc, Timmermann, Lars   +4 more
openaire   +4 more sources

Identification of the stria medullaris thalami using diffusion tensor imaging

NeuroImage: Clinical, 2016
Background: Deep brain stimulation (DBS) via anatomical targeting of white matter tracts defined by diffusion tensor imaging (DTI) may be a useful tool in the treatment of pathologic neurophysiologic circuits implicated in certain disease states like ...
Ryan B. Kochanski, MD, Robert Dawe, PhD, Daniel B. Eddelman, MD, Mehmet Kocak, MD, Sepehr Sani, MD   +4 more
doaj   +1 more source

The Case for Optimized Edge-Centric Tractography at Scale

Frontiers in Neuroinformatics, 2022
The anatomic validity of structural connectomes remains a significant uncertainty in neuroimaging. Edge-centric tractography reconstructs streamlines in bundles between each pair of cortical or subcortical regions.
Joseph Y. Moon, Pratik Mukherjee, Ravi K. Madduri, Amy J. Markowitz, Lanya T. Cai, Eva M. Palacios, Geoffrey T. Manley, Peer-Timo Bremer   +7 more
doaj   +1 more source

Simulating convection-enhanced delivery in the putamen using probabilistic tractography [PDF]

2011 IEEE International Symposium on Biomedical Imaging: From Nano to Macro, 2011
The treatment of brain diseases is complicated by the presence of the blood-brain barrier. This barrier limits the crossing of therapeutic molecules from the blood vessels into the brain. Today, direct intracerebral infusion applying convection-enhanced delivery (CED) is proposed to circumvent this problem and enhance the area of distribution of ...
Do P. M. Tromp, Nagesh Adluru, Andrew L. Alexander, Marina E. Emborg   +3 more
openaire   +2 more sources

Accuracy of corticospinal tract reconstruction: DTI-based deterministic versus probabilistic tractography with intraoperative validation

Frontiers in Oncology
IntroductionThe precise preoperative mapping of the corticospinal tract (CST) is crucial for preserving motor integrity during brain tumor resection.
Roberto Altieri, Lorenzo Ugga, Ferdinando Caranci, Ciro De Luca, Giuseppe La Rocca, Daniela Pacella, Manlio Barbarisi   +6 more
doaj   +1 more source

Characteristic cortico-cortical connection profile of human precuneus revealed by probabilistic tractography

Scientific Reports, 2023
It is generally hypothesized that functional connectivity (FC) reflects the underlying structural connectivity (SC). The precuneus is associated with highly integrated cognitive functions.
Tatsuya Jitsuishi, Atsushi Yamaguchi
doaj   +1 more source