Results 61 to 70 of about 12,725 (195)

High b-value diffusion tractography: Abnormal axonal network organization associated with medication-refractory epilepsy

NeuroImage, 2022
Diffusion magnetic resonance imaging (dMRI) tractography has played a critical role in characterizing patterns of aberrant brain network reorganization among patients with epilepsy.
Ezequiel Gleichgerrcht, Simon S. Keller, Lorna Bryant, Hunter Moss, Tanja S. Kellermann, Shubhabrata Biswas, Anthony G. Marson, Janina Wilmskoetter, Jens H. Jensen, Leonardo Bonilha   +9 more
doaj   +1 more source

MR Imaging‐Based Biomarkers for Strength Prediction: A Statistical Shape and Architecture Modeling of Quadriceps Muscles

Journal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Background Muscle mass decline, associated with strength decline, is a hallmark of aging. Yet, strength decline greatly exceeds mass decline. This indicates that aspects of muscle quality and architecture—not reflected by mass—also influence force generating capacity.
Salim Bin Ghouth, Ozkan Cigdem, Valentina Mazzoli   +2 more
wiley   +1 more source

Validation of in utero tractography of human fetal commissural and internal capsule fibers with histological structure tensor analysis

Frontiers in Neuroanatomy, 2015
Diffusion tensor imaging (DTI) and tractography offer the unique possibility to visualize the developing white matter macroanatomy of the human fetal brain in vivo and in utero and are currently under investigation for their potential use in the ...
Christian eMitter, Christian eMitter, András eJakab, Peter C Brugger, Gerda eRicken, Gerlinde M Gruber, Dieter eBettelheim, Anke eScharrer, Georg eLangs, Johannes A Hainfellner, Daniela ePrayer, Gregor eKasprian   +11 more
doaj   +1 more source

Functional Imaging for Identification of Functionally Critical Brain Regions to Spare in Glioma Radiation Therapy Planning: A Systematic Review

Journal of Medical Radiation Sciences, EarlyView.
This review highlights the role of functional imaging in sparing cognitive brain regions during glioma radiotherapy. It shows promising dose reduction without compromising target coverage, but evidence remains limited, requiring standardisation and prospective validation.
Li Wen Yeo, John T. Ryan
wiley   +1 more source

Phybers: a package for brain tractography analysis

Frontiers in Neuroscience
We present a Python library (Phybers) for analyzing brain tractography data. Tractography datasets contain streamlines (also called fibers) composed of 3D points representing the main white matter pathways.
Lazara Liset González Rodríguez, Ignacio Osorio, Alejandro Cofre G., Hernan Hernandez Larzabal, Hernan Hernandez Larzabal, Claudio Román, Cyril Poupon, Jean-François Mangin, Cecilia Hernández, Cecilia Hernández, Pamela Guevara   +10 more
doaj   +1 more source

White matter fiber tracking directed by interpolating splines and a methodological framework for evaluation

Frontiers in Neuroinformatics, 2013
Image-based tractography of white matter (WM) fiber bundles in the brain using diffusion weighted MRI (DW-MRI) has become a useful tool in basic and clinical neuroscience.
Are eLosnegård, Are eLosnegård, Arvid eLundervold, Arvid eLundervold, Erlend eHodneland   +4 more
doaj   +1 more source

Quantitative analysis of fiber tractography in cervical spondylotic myelopathy [PDF]

The Spine Journal, 2013
Diffusion tensor fiber tractography is an emerging tool for the visualization of spinal cord microstructure. However, there are few quantitative analyses of the damage in the nerve fiber tracts of the myelopathic spinal cord.The aim of this study was to develop a quantitative approach for fiber tractography analysis in cervical spondylotic myelopathy ...
Lee, Manpan, Mak, Kincheung, Hu, Yong, Luk, KeithDK, Wen, Chunyi, Cui, Jiaolong   +5 more
openaire   +4 more sources

Speech and Deep Brain Stimulation in Parkinson's Disease, Essential Tremor, and Dystonia: A Systematic Review and Meta‐analysis

Movement Disorders, EarlyView.
Abstract Deep brain stimulation (DBS) effectively treats motor symptoms in movement disorders but often compromises speech through incompletely defined mechanisms. We conducted a PROSPERO‐registered systematic review and meta‐analysis of publications through August 2024 (CRD42024527738).
Elina Tripoliti, Takashi Tsuboi, Michael T. Barbe, Mario Sousa, Julie Barkmeier‐Kraemer, Hannah Jergas, Gaia Arno, Nicole Buie, Mikayla Day, Petr Krýže, Jayson R. Nelson, Aaron E.L. Warren, Shervin Rahimpour, Jan Rusz, Paul Krack, Kristina Simonyan   +15 more
wiley   +1 more source

Bundle-specific tractogram distribution estimation using higher-order streamline differential equation

NeuroImage
Streamline tractography locally traces peak directions extracted from fiber orientation distribution (FOD) functions, lacking global information about the trend of the whole fiber bundle. Therefore, it is prone to producing erroneous tracks while missing
Yuanjing Feng, Lei Xie, Jingqiang Wang, Qiyuan Tian, Jianzhong He, Qingrun Zeng, Fei Gao   +6 more
doaj   +1 more source

Real-time multi-peak tractography for instantaneous connectivity display

Frontiers in Neuroinformatics, 2014
The computerized process of reconstructing white matter tracts from diffusion MRI (dMRI) data is often referred to as tractography. Tractography is nowadays central in structural connectivity since it is the only non-invasive technique to obtain ...
Maxime eChamberland, Maxime eChamberland, Maxime eChamberland, Kevin eWhittingstall, Kevin eWhittingstall, Kevin eWhittingstall, David eMathieu, David eFortin, David eFortin, Maxime eDescoteaux, Maxime eDescoteaux   +10 more
doaj   +1 more source