Results 111 to 120 of about 10,176 (239)

Simultaneous Volumetric T1 and T2 Mapping With Blood‐ and Fat‐Suppression in Abdominal Aortic Aneurysms

Magnetic Resonance in Medicine, Volume 95, Issue 6, Page 3416-3428, June 2026.
ABSTRACT Purpose To develop and validate a protocol for simultaneous volumetric T1 and T2 mapping with blood‐ and fat‐suppression, and apply it to patients with abdominal aortic aneurysms (AAA) to assess tissue characteristics. Methods A spoiled gradient echo (SPGR) variable flip angle (VFA) acquisition was modified with preparation modules to suppress
Wilhelm Stehling, Myrte Wennen, Eva Aalbregt, Eric Schrauben, Pim van Ooij, Kak Khee Yeung, Aart J. Nederveen, Oliver J. Gurney‐Champion   +7 more
wiley   +1 more source

Volumetric T1 and T2 magnetic resonance brain toolkit for relaxometry mapping simulation

, 2016
Introduction Relaxometry images are an important magnetic resonance imaging (MRI) technique in the clinical routine. Many diagnoses are based on the relaxometry maps to infer abnormal state in the tissue characteristic relaxation constant.
Antonio Carlos da Silva Senra Filho (5609300)
core   +1 more source

Input Layer Regularization and Automated Regularization Hyperparameter Tuning for Myelin Water Estimation Using Deep Learning

NMR in Biomedicine, Volume 39, Issue 6, June 2026.
We propose a novel deep learning algorithm for predicting the myelin water fraction from multiple gradient‐echo or spin‐echo pulse sequences arising in magnetic resonance relaxometry (MRR) measurements of the human brain. Our method incorporates both regularized nonlinear least squares and pure deep learning through a concatenation paradigm known as ...
Mirage Modi, Shashank Sule, Jonathan Palumbo, Michael Rozowski, Griffin S. Hampton, Mustapha Bouhrara, Wojciech Czaja, Richard G. Spencer   +7 more
wiley   +1 more source

Longitudinal Assessment of Dentate Nuclei Relaxometry during Massive Gadobutrol Exposure

, 2018
We report the assessment of Dentate Nuclei (DN) R1 (1/T1) and R2* (1/T2*) values in a patient with relapsing-remitting Multiple Sclerosis, exposed to 22 standard (0.1 mmol/kg) doses of gadobutrol, who underwent eight relaxometric MR measurements within 2
Borrelli, Pasquale, Cocozza, Sirio, Palma, Giuseppe, Morra, Vincenzo Brescia, Lorenzo Ugga, Tedeschi, Enrico, Sirio Cocozza, Pasquale Borrelli, Ugga, Lorenzo, Enrico Tedeschi, Vincenzo Brescia Morra, Giuseppe Palma   +11 more
core   +1 more source

Editorial: Neurology and neuroimaging in exotic and non-domestic species

Frontiers in Veterinary Science, 2022
Silke Hecht, William B. Thomas, Michael Pees   +2 more
doaj   +1 more source

Data‐Driven Characterization of Knee Structures Using Non‐Negative Matrix Factorization of 3D Multi‐Echo UTE MRI

NMR in Biomedicine, Volume 39, Issue 6, June 2026.
Non‐negative matrix factorization (NMF) can derive tissue features in a data‐driven manner without relying on biophysical model assumptions. First‐time application of NMF to 3D multi‐echo UTE knee MRI revealed four reproducible components associated with tissues of fast and slow transverse relaxation, water–fat mixture (chemical shift), and fat tissue.
Céline Smekens, Pieter Van Dyck, Patrick S. Fuchs, Jan Sijbers, Thomas Janssens, Ben Jeurissen   +5 more
wiley   +1 more source

Multiscale time-domain NMR for structural, water, and texture characterization of meat and plant-based food matrices: a mini review

Frontiers in Nutrition
Time-domain nuclear magnetic resonance (TD-NMR) is a powerful, non-destructive method for probing water mobility, molecular dynamics, and hierarchical structure in complex food matrices.
Zeev Wiesman
doaj   +1 more source

Reducing Noise Induced by Cardiac Pulsatility in Brain Maps of R2* and Magnetic Susceptibility Using Tailored k‐space Sampling

NMR in Biomedicine, Volume 39, Issue 6, June 2026.
With linear k‐space sampling trajectories, cardiac pulsation leads to MRI signal instabilities that increase the variability (standard deviation, SD) of R2* and QSM maps across repetitions. Here, we propose alternative trajectories that aim to mitigate the impact of cardiac‐induced noise in brain maps of R2* and QSM.
Quentin Raynaud, Thomas Dardano, Rita Oliveira, Giulia Di Domenicantonio, Tobias Kober, Christopher W. Roy, Ruud B. van Heeswijk, Antoine Lutti   +7 more
wiley   +1 more source

Quantitative T2* Magnetic Resonance Imaging for Iron Detection in Soft Tissue of the Fingers

NMR in Biomedicine, Volume 39, Issue 6, June 2026.
T2* MRI was evaluated for detecting iron in soft tissues of the fingers. After visual inspection of dual‐colored maps, multiple regions of interest were placed in the soft tissues at areas that indicated increased susceptibility. Lower T2* values, indicative of iron deposition, were detected in patients with microvasculopathy (right panel) but not in ...
Artemis Galani, Nikolaos I. Vlachogiannis, Vassilis Koutoulidis, Georgia Lymperopoulou, Petros P. Sfikakis, Thomas G. Maris, Lia Angela Moulopoulos   +6 more
wiley   +1 more source

Physical Stability and Molecular Mobility of Resveratrol in a Polyvinylpyrrolidone Matrix

Molecules
The physical stability, molecular mobility, and appearance of nanocrystalline resveratrol in a polyvinylpyrrolidone (PVP) matrix were investigated. Two formulations with resveratrol loadings of 30% and 50% were prepared and characterized using powder X ...
Aleksandra Pajzderska, Miguel Angel González, Marcin Jarek, Jadwiga Mielcarek, Jan Wąsicki   +4 more
doaj   +1 more source