Results 81 to 90 of about 12,725 (195)

Test-Retest Reliability of Diffusion Measures Extracted Along White Matter Language Fiber Bundles Using HARDI-Based Tractography

Frontiers in Neuroscience, 2019
High angular resolution diffusion imaging (HARDI)-based tractography has been increasingly used in longitudinal studies on white matter macro- and micro-structural changes in the language network during language acquisition and in language impairments ...
Mariem Boukadi, Mariem Boukadi, Karine Marcotte, Karine Marcotte, Christophe Bedetti, Jean-Christophe Houde, Alex Desautels, Alex Desautels, Samuel Deslauriers-Gauthier, Marianne Chapleau, Marianne Chapleau, Arnaud Boré, Maxime Descoteaux, Simona M. Brambati, Simona M. Brambati   +14 more
doaj   +1 more source

A Numerical Alternative to MR Thermometry for Safety Validation of Multi‐Channel RF Transmit Coils

Magnetic Resonance in Medicine, Volume 96, Issue 1, Page 469-484, July 2026.
ABSTRACT Purpose This study proposes a numerical technique to estimate peak local specific absorption rate (SAR) uncertainty of multi‐channel RF coils during the process of safety validation as an alternative to experimental temperature and electric‐field measurements, and demonstrates its use to enable human studies at 10.5 T.
Alireza Sadeghi‐Tarakameh, Simon Schmidt, Matt Waks, Russell L. Lagore, Andrea Grant, Edward Auerbach, Lance DelaBarre, Lasse Knudsen, Christophe Lenglet, Luca Vizioli, Essa Yacoub, Gregor Adriany, Gregory J. Metzger, Kamil Ugurbil, Yigitcan Eryaman   +14 more
wiley   +1 more source

Offline Reconstruction of Diffusion MRI Acquisitions for Comparison Between Complex PCA‐Based and AI‐Based Denoising

Magnetic Resonance in Medicine, Volume 96, Issue 1, Page 435-447, July 2026.
ABSTRACT Purpose Optimal diffusion MRI (dMRI) data for image denoising is often unavailable from scanner reconstruction. In this work, we make available an offline reconstruction pipeline for GE dMRI acquisitions, giving access to complex dMRI data. Furthermore, we compare the efficacy of GE HealthCare's AIR‐Recon DL (ARDL), a proprietary convolutional
Francesco D'Antonio, Shaun Warrington, Jose‐Pedro Manzano‐Patron, Paul S. Morgan, Stamatios N. Sotiropoulos   +4 more
wiley   +1 more source

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

Architecture of lower leg muscles in children: Reference curves and potential mechanisms of growth

Journal of Anatomy, Volume 249, Issue 1, Page 54-67, July 2026.
Muscle architecture (physiological cross‐sectional area, fascicle lengths and pennation angle) was measured from multimodal MRI scans of the lower legs of 197 children aged ≤15 years. We showed that lower leg muscle volumes (product of PCSA and fascicle length) increase primarily through increases in PCSA (transverse growth) rather than increases in ...
Brian V. Y. Chow, Suzanne Davies, Catherine Morgan, Caroline D. Rae, David I. Warton, Iona Novak, Ann Lancaster, Gordana C. Popovic, Rodrigo R. N. Rizzo, Claudia Y. Rizzo, Iain K. Ball, Robert D. Herbert, Bart Bolsterlee   +12 more
wiley   +1 more source

Structural Eigenmodes of the Brain to Improve the Source Localization of EEG: Application to Epileptiform Activity

Advanced Science, Volume 13, Issue 31, 4 June 2026.
Geometry and connectivity are complementary structures, which have demonstrated their ability to represent the brain's functional activity. This study evaluates geometric and connectome eigenmodes as biologically informed constraints for EEG source localization.
Pok Him Siu, Philippa J. Karoly, Sina Mansour L., Artemio Soto‐Breceda, Levin Kuhlmann, Mark J. Cook, David B. Grayden   +6 more
wiley   +1 more source

Conus Medullaris Teratoma with Utilization of Fiber Tractography: Case Report

Journal 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, Abdullah Faisal Arab, Eve Tsai   +2 more
doaj   +1 more source

Vulnerability of the locus coeruleus–entorhinal cortex white matter tract in autosomal dominant Alzheimer's disease

Alzheimer's &Dementia, Volume 22, Issue 6, June 2026.
Abstract INTRODUCTION Locus coeruleus (LC) structural integrity declines early in sporadic and autosomal dominant Alzheimer's disease (AD). We examined LC–entorhinal cortex (LC‐EC) tract integrity and its association with amyloid and tau pathology and memory in autosomal dominant AD (ADAD).
Elouise A. Koops, Averi Giudicessi, Ana Baena, Lusiana Martinez, Nikole Bonillas‐Felix, Randy Medrano, Joyita Dutta, Isabela Gonzalez, Sergio Alvarez, David Aguillon, Yakeel T. Quiroz, Heidi I. L. Jacobs   +11 more
wiley   +1 more source

Pitch as a Shared Code for Music and Speech: Behavioral and Neural Evidence From Stroke Patients

Brain and Behavior, Volume 16, Issue 6, June 2026.
ABSTRACT Introduction Accurate pitch processing, including the ability to discriminate small differences in pitch, is essential for interpreting the melodic structure of both music and speech. However, the extent to which pitch discrimination is a shared auditory‐perceptual processing component in these domains remains unclear.
Aleksi J. Sihvonen, Tommi Makkonen, Teppo Särkämö   +2 more
wiley   +1 more source

Structural Connectivity of Functionally Defined Episodic Memory Networks: A Large‐Scale Connectome–Behavior Study

Brain and Behavior, Volume 16, Issue 6, June 2026.
Abstract Background Previous task‐based fMRI work in a large cohort of young adults identified nine large‐scale functional brain networks whose encoding‐related responsivity was robustly associated with individual differences in episodic memory. It remains unclear whether structural connectivity within these task‐fMRI‐defined networks explains inter ...
Neda Ghasemi, David Coynel, Andreas Papassotiropoulos, Dominique J. F. de Quervain   +3 more
wiley   +1 more source