Results 51 to 60 of about 45,799 (233)

Mitigating Gyral Bias in Cortical Tractography via Asymmetric Fiber Orientation Distributions [PDF]

Diffusion tractography in brain connectomics often involves tracing axonal trajectories across gray-white matter boundaries in gyral blades of complex cortical convolutions. To date, gyral bias is observed in most tractography algorithms with streamlines
Feng, Yuanjing, Hong, Yoonmi, Shen, Dinggang, Wu, Ye, Yap, Pew-Thian   +4 more
core   +1 more source

Structure–Function Decoupling of the Sensorimotor and Default Mode Networks in Black Americans With MS

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background and Objectives Multiple sclerosis (MS) exhibits racially disparate rates of disease progression. Black people with MS (B‐PwMS) experience a more severe disease course than non‐Hispanic White people with MS (NHW‐PwMS). Here we investigated structural and functional connectivity as well as structure–function decoupling in the ...
Emilio Cipriano, Giacomo Boffa, Maria Petracca, Marta Ponzano, Nicole Graziano, Claire Wigley, Claire Riley, Jonathan Howard, Pietro Bontempi, Sylvia Klineova, Fred Lublin, Matilde Inglese   +11 more
wiley   +1 more source

Using diffusion tensor imaging to identify corticospinal tract projection patterns in children with unilateral spastic cerebral palsy. [PDF]

AIM: To determine whether diffusion tensor imaging (DTI) can be an independent assessment for identifying the corticospinal tract (CST) projecting from the more-affected motor cortex in children with unilateral spastic cerebral palsy (CP). METHOD: Twenty
Carmel, Jason B., Ferre, Claudio L., Friel, Kathleen M., Gordon, Andrew M., Gowatsky, Jaimie L., Kuo, Hsing-Ching, Lisanby, Sarah H., Rowny, Stefan B., Stanford, Arielle D.   +8 more
core   +1 more source

Paramagnetic Rim Lesions Are Associated With Trans‐Synaptic Degeneration of the Visual Pathway in Multiple Sclerosis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives Retrograde trans‐synaptic degeneration (rTSD) from posterior visual pathway lesions in multiple sclerosis (MS) is characterized by hemi‐macular ganglion cell‐inner plexiform layer (GCIPL) thinning and contralateral visual field loss.
Abdul Jaber Tayem, Angel Liu, Sargis Manukyan, Mustafa Subhi, Elaina Luskin, Bryan Quah, Sreekanth Madhusoodhanan Nair, Arzu C. Has Silemek, Gabriela Zabala, Yujie Cui, Laura Locke, Paula Barreras, Marwa Kaisey, Vinicius Calsavara, Daniel S. Reich, Nancy L. Sicotte, Pascal Sati, Omar Al‐Louzi   +17 more
wiley   +1 more source

Diffusion MRI tractography for improved transcranial MRI-guided focused ultrasound thalamotomy targeting for essential tremor

NeuroImage: Clinical, 2018
Purpose: To evaluate the use of diffusion magnetic resonance imaging (MRI) tractography for neurosurgical guidance of transcranial MRI-guided focused ultrasound (tcMRgFUS) thalamotomy for essential tremor (ET).
Qiyuan Tian, Max Wintermark, W. Jeffrey Elias, Pejman Ghanouni, Casey H. Halpern, Jaimie M. Henderson, Diane S. Huss, Maged Goubran, Christian Thaler, Raag Airan, Michael Zeineh, Kim Butts Pauly, Jennifer A. McNab   +12 more
doaj   +1 more source

Vessel tractography using an intensity based tensor model with branch detection [PDF]

In this paper, we present a tubular structure seg- mentation method that utilizes a second order tensor constructed from directional intensity measurements, which is inspired from diffusion tensor image (DTI) modeling.
Cetin, Suheyla, Degertekin, Muzaffer, Demir, Ali, Değertekin, Muzaffer, Unal, Gozde, Yezzi, Anthony, Çetin, Süheyla, Ünal, Gözde   +7 more
core   +1 more source

Spatial and Volumetric Characteristics of Glioblastoma: Associations With Clinical Presentation and Survival

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective We aim to comprehensively analyze how regional tumor and edema characteristics are associated with clinical presentations and survival outcomes in a large cohort of glioblastoma patients. Methods Patients with IDH‐wildtype glioblastoma who received brain MRI from 2010 to 2023 were included.
Daniel J. Zhou, Marc Jaskir, Julian Gal, Yombe Fonkeu, Christos Davatzikos, MacLean P. Nasrallah, Jose Garcia, Rubo Xing, Stephen J. Bagley, Arati Desai, Richard E. Phillips, Steven Tobochnik, Colin A. Ellis, James J. Gugger, Nishant Sinha, Joel M. Stein, Kathryn A. Davis   +16 more
wiley   +1 more source

Neurosurgical applications of tractography in the UK [PDF]

British Journal of Neurosurgery, 2020
Tractography derived from diffusion MRI can provide important insights into human brain microstructure in vivo. Neurosurgeons were quick to adopt the technique at the turn of the century, but it remains plagued by technical fallibilities. This study aims to describe how tractography is deployed clinically in a modern-day, public healthcare system ...
Sebastian M. Toescu, Patrick W. Hales, Martin M. Tisdall, Kristian Aquilina, Christopher A. Clark   +4 more
openaire   +3 more sources

Feasibility study to unveil the potential: considerations of constrained spherical deconvolution tractography with unsedated neonatal diffusion brain MRI data

Frontiers in Radiology
PurposeThe study aimed to (1) assess the feasibility constrained spherical deconvolution (CSD) tractography to reconstruct crossing fiber bundles with unsedated neonatal diffusion MRI (dMRI), and (2) demonstrate the impact of spatial and angular ...
Anouk S. Verschuur, Anouk S. Verschuur, Anouk S. Verschuur, Chantal M. W. Tax, Chantal M. W. Tax, Martijn F. Boomsma, Martijn F. Boomsma, Helen L. Carlson, Gerda van Wezel-Meijler, Regan King, Alexander Leemans, Lara M. Leijser   +11 more
doaj   +1 more source

White matter differences between healthy young ApoE4 carriers and non-carriers identified with tractography and support vector machines. [PDF]

The apolipoprotein E4 (ApoE4) is an established risk factor for Alzheimer's disease (AD). Previous work has shown that this allele is associated with functional (fMRI) changes as well structural grey matter (GM) changes in healthy young, middle-aged and ...
Hampel, Harald, Lamberton, Franck, Matura, Silke, Miller, Julia, O'Dwyer, Laurence, Prvulovic, David, Rujescu, Dan, Scheibe, Monika   +7 more
core   +1 more source