Results 131 to 140 of about 164,969 (292)

Optimization of Diffusion MRI With Consideration of the Signal Decay in Biological Tissues

Magnetic Resonance in Medicine, Volume 96, Issue 1, Page 460-468, July 2026.
ABSTRACT Purpose Devising methodology to characterize and optimize acquisition schemes for biological tissues, such as the prostate, that produce model‐based synthetic diffusion‐weighted images and derived model parameters with predictable SNR improvement. Methods The averaging effect (AE) in synthetic diffusion‐weighted images obtained through fitting
Stefan Kuczera, Stephan E. Maier
wiley   +1 more source

Modeling of Fiber Orientation‐Dependent R1 Relaxation in Human White Matter In Vivo Within The Framework of The Transient Hydrogen Bond Model

Magnetic Resonance in Medicine, Volume 96, Issue 1, Page 315-322, July 2026.
ABSTRACT Purpose Axon fiber orientation‐dependent R1 relaxation in human white matter (WM) in vivo at B0 = 1.5 T, 3 T, and 7 T was studied within the framework of the transient hydrogen bond (THB) model, which attributes MR signal relaxation to quantum magnetization interactions of water and motion‐restricted protons in hydrophilic heads of lipid ...
Dmitriy A. Yablonskiy, Risto A. Kauppinen, Ekaterina Paasonen, Jeromy Thotland, Mervi Könönen, Pramod Pisharady, Christophe Lenglet, Juhana M. Hakumäki, Olli H. J. Gröhn, Michael Garwood, Alexander L. Sukstanskii   +10 more
wiley   +1 more source

Beyond intracranial pressure: Cerebrospinal fluid compartmentalization in spaceflight‐associated neuro‐ocular syndrome

Experimental Physiology, EarlyView.
Susan P. Mollan, Damian M. Bailey
wiley   +1 more source

Assessment of Optimal T1/T2‐Weighted Combinations for Myelin Sensitivity: Effects of Echo Time and Exponents

Magnetic Resonance in Medicine, Volume 95, Issue 6, Page 3176-3186, June 2026.
ABSTRACT Purpose The aim of this study is to improve the traditional T1‐weighted (T1w) over T2‐weighted (T2w) ratio as a proxy for myelin by investigating the optimal T2w TE and combination of exponent‐weighted T1w and T2w images (T1wx1/T2wx2). Methods T1w and T2w Gradient And Spin Echo (GRASE) data were acquired from 14 volunteers, 6 of whom had a ...
Simone Monachino, Gerhard S. Drenthen, Lis J. M. van den Boogaard, Marcel Breeuwer, Catarina Dinis Fernandes, Oliver H. H. Gerlach, Svitlana Zinger, Jacobus F. A. Jansen   +7 more
wiley   +1 more source

Ultrafast Blood T1 Measurement Using Golden Angle Rotated Spiral k‐t Sparse Parallel Imaging (GASSP): Evaluations in Both Pre‐ and Post‐Contrast Conditions

Magnetic Resonance in Medicine, Volume 95, Issue 6, Page 3351-3359, June 2026.
ABSTRACT Purpose Blood T1 is a key parameter for hemodynamic quantification in both non‐contrast‐ and contrast‐enhanced imaging. Individual vessel T1 has been measured using a modified Look–Locker scheme with multi‐shot EPI or FLASH in high spatial resolution, requiring ∼1 min.
Zechen Xu, Feng Xu, Qin Qin, Dan Zhu
wiley   +1 more source

Complementary Sensitivity of Fixed‐Time and Fixed‐Oscillation Regimes to Exchange and Structural Disorder in the Human Brain Revealed Using Oscillating‐Gradient Diffusion MRI With Ultra‐Strong Gradients

Magnetic Resonance in Medicine, Volume 95, Issue 6, Page 3429-3444, June 2026.
ABSTRACT Purpose Oscillating‐gradient spin‐echo (OGSE) diffusion MRI probes cell geometry and membrane integrity through the frequency‐dependence of kurtosis, but prior studies have reported inconsistent findings depending on how frequency is varied. We compared frequency‐dependent kurtosis in the human brain under two regimes: varying frequency with ...
Dongsuk Sung, Kwok‐Shing Chan, Julianna Gerold, Wen Zhong, Jialan Zheng, Qiyuan Tian, Hua Guo, Susie Y. Huang, Hong‐Hsi Lee   +8 more
wiley   +1 more source

Prodrug-integrated multifunctional liposome encapsulation enhances probiotic-based bacteriotherapy for inflammatory bowel disease. [PDF]

Mater Today Bio
Xin J, Guan Q, Chen Y, Bi S, Zhang J, Li M, Liu Q, Tang W, Wang P, Liu J.   +9 more
europepmc   +1 more source

Structural Characterization of Cardiac Free‐Running Purkinje Fibers Using Inhomogeneous Magnetization Transfer (ihMT): A Proof of Concept MRI‐Histology Approach

NMR in Biomedicine, Volume 39, Issue 6, June 2026.
The cardiac Purkinje network is essential for synchronized ventricular activation but remains difficult to visualize with conventional MRI due to limited structural contrast. This study demonstrates that inhomogeneous magnetization transfer imaging provides enhanced contrast that differentiates free‐running Purkinje fibers, Purkinje‐Myocardial Junction,
Arash Forodighasemabadi, Evgenios N. Kornaropoulos, Marion Constantin, Lucas Soustelle, Fanny Vaillant, Jude Leury, Richard Walton, Olivier Bernus, Bruno Quesson, Olivier M. Girard, Guillaume Duhamel, Julie Magat   +11 more
wiley   +1 more source

Increased Glymphatic System Activity and Hypothalamic Connectivity in Patients With Premenstrual Dysphoric Disorder. [PDF]

Depress Anxiety
Liu C, Xu X, Li Y, Chen S, Liu D, Liu Y, Lu J, Liu P, Liao H.   +8 more
europepmc   +1 more source

Validating Oxford Nanopore Technologies Amplicon Sequencing as an Alternative to Sanger Sequencing for Generating Plant Molecular Markers

New Zealand Journal of Botany, Volume 64, Issue 2, June 2026.
Molecular phylogenetic markers used to be ubiquitously obtained by Sanger sequencing, while recently, next generation sequencing (NGS) approaches have become popular alternatives. In this study, a pipeline utilizing Oxford Nanopore Technologies (ONT) amplicon sequencing (amplicon‐seq) was examined as an alternative to Sanger sequencing, with nine loci [
Kanae Nishii, Michelle L. Hart, Laura L. Forrest, M. K. Akhil, Santhosh Nampy, Subhani Ranasinghe, Aaron Jeffries, Michael Möller   +7 more
wiley   +1 more source