Results 201 to 210 of about 1,217,161 (237)

Comparison of Amplitude‐ and Amplitude‐Frequency‐Modulated Pulses for Outer Volume Suppression in Cardiac MRI: Application to Myocardial T2 Mapping

Magnetic Resonance in Medicine, Volume 96, Issue 5, Page 2240-2252, November 2026.
ABSTRACT Purpose To evaluate single‐ and dual‐band pulse modules for suppressing extra‐cardiac signal in cardiac MRI, and test their applicability for time‐efficient imaging with reduced FOV in myocardial T2 mapping at 3 T. Methods Outer Volume Suppression (OVS) was implemented using two regional saturation slabs, along the phase‐encoding direction ...
Ayda Arami, Maša Božić‐Iven, Christal van de Steeg‐Henzen, Yidong Zhao, Yi Zhang, Qian Tao, Alexandru Cernicanu, Hildebrandus Johannes Lamb, Sebastian Weingärtner   +8 more
wiley   +1 more source

Image Encoding With Blipped Gradients in an Echo Train

Magnetic Resonance in Medicine, Volume 96, Issue 5, Page 2530-2538, November 2026.
ABSTRACT Purpose An MRI scanner was designed and built to encode k‐space points in the spin echoes occurring between 180∘ pulses in an echo train by using blipped B0 gradient pulses applied just prior to those spin echoes. Methods The proposed MRI scanner is a modification of an original design that used TRansmit Array Spatial Encoding (TRASE), a built‐
Logi Vidarsson, Gordon E. Sarty
wiley   +1 more source

Spatial Collinearity Constrains Multivariate Molecular‐Enriched Network Estimation

Human Brain Mapping, Volume 47, Issue 14, October 1, 2026.
Spatial collinearity among PET maps undermines multivariate network estimation and obscures drug mechanisms. Moving from multivariate to univariate modelling resolves this instability, significantly boosting test–retest reliability and uncovering clear, receptor‐specific pharmacodynamics in pharmacoimaging data.
Timothy Lawn, Johan Nakuci, Steve C. R. Williams, Federico Turkheimer, Mitul A. Mehta   +4 more
wiley   +1 more source

Quantifying Cardiac, Respiratory, and Low Frequency Components of CSF Motion From fMRI Inflow Effects

Magnetic Resonance in Medicine, Volume 96, Issue 4, Page 1916-1928, October 2026.
ABSTRACT Purpose Cerebrospinal fluid (CSF) flow oscillations have emerged as a potentially important marker related to brain clearance, but their acquisition often relies on specialized imaging MRI sequences. The purpose of this work was to enable quantitative assessment of CSF flow associated with cardiac, respiratory, and low‐frequency cycles using ...
Pontus Söderström, Cecilia Björnfot, Britt M. Andersson, Jan Malm, Anders Eklund, Anders Wåhlin   +5 more
wiley   +1 more source

A Static Phantom for Harmonization of Hyperpolarized [1–13C]Pyruvate Metabolic Magnetic Resonance Imaging

Magnetic Resonance in Medicine, Volume 96, Issue 4, Page 1769-1777, October 2026.
ABSTRACT PurposeTo develop and characterize a static, reusable 13C phantom designed to assess and support the harmonization of MRI setups used for hyperpolarized (HP) [1‐13C]pyruvate imaging. MethodsThe phantom was designed as a 200‐mm‐diameter polycarbonate sphere filled with 8M natural abundance urea and incorporating distinct modules for assessing ...
Kristina P. Jacobsen, Ingeborg S. Skre, Rie B. Olin, Mathilde H. Lerche   +3 more
wiley   +1 more source

T1‐weighting in Steady‐State FLASH MRI–Diffusion Is Not Only Supportive but Mandatory for the Contrast

Magnetic Resonance in Medicine, Volume 96, Issue 4, Page 1789-1797, October 2026.
ABSTRACT Purpose FLASH imaging is widely assumed to produce a T1‐weighted steady‐state contrast using RF‐ and gradient‐spoiling. We observed substantial overestimation of CSF signals in simulations, when diffusion was neglected and realistic proton density was applied.
Simon Weinmüller, Deepak Charles Chellapandian, Jonathan Endres, Jochen Leupold, Florian Gritsch, Fabian Wagner, Rainer Schneider, Moritz Zaiss   +7 more
wiley   +1 more source

A Modified Balanced Steady State Free Precession Sequence for Overhauser Magnetic Resonance Imaging

Magnetic Resonance in Medicine, Volume 96, Issue 4, Page 1655-1665, October 2026.
ABSTRACT Purpose Low‐ and ultralow‐field magnetic resonance imaging (ULF MRI) have inherently low signal‐to‐noise ratio (SNR) by design. Overhauser dynamic nuclear polarization (ODNP) stands out as an effective solution for continuous signal enhancement.
Kai Buckenmaier, Friedemann Bullinger, Georgiy Alekseevich Solomakha, Marcel Schneider, Jörn Engelmann, Philipp Pohlmann, Pavel Povolni, Laura Kuebler, André Ferreira Martins, Klaus Scheffler   +9 more
wiley   +1 more source

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On an integral-type operator from iterated logarithmic Bloch spaces into Bloch-type spaces

Applied Mathematics and Computation, 2009
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Songxiao Li, Stevo Stevic
exaly   +4 more sources

Bounded superposition operators between Bloch–Orlicz and α-Bloch spaces

Applied Mathematics and Computation, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
René Erlin Castillo, Julio C Ramos Fernández   +1 more
exaly   +3 more sources

Generalized composition operators on Zygmund spaces and Bloch type spaces [PDF]

Journal of Mathematical Analysis and Applications, 2008
The boundedness and compactness of the generalized composition operator on Zygmund spaces and Bloch type spaces are investigated in this ...
Songxiao Li, Stevo Stevic
exaly   +2 more sources