Results 131 to 140 of about 65,529 (267)

Data Stitching for Dynamic Field Monitoring With NMR Probes

Magnetic Resonance in Medicine, Volume 95, Issue 4, Page 1944-1958, April 2026.
ABSTRACT Purpose To propose a new method for characterizing sequences with higher resolution or readout length than allowed by standard field monitoring approaches. Methods Our proposed method was devised to characterize entire readout gradients by stitching multiple segment‐specific dynamic field measurements obtained across a matched number of ...
Jinyuan Zhang, Zihao Zhang, Zhentao Zuo, Rong Xue, Yan Zhuo, Cameron Cushing, Alexander Bratch, Edward Auerbach, Andrea Grant, Jing An, Kamil Ugurbil, Xiaoping Wu   +11 more
wiley   +1 more source

Read My Leads: Subject‐Specific RF Hazard Assessment and Mitigation for DBS Implants in MRI

Magnetic Resonance in Medicine, Volume 95, Issue 4, Page 2316-2330, April 2026.
ABSTRACT Purpose To develop and validate a framework for personalized, implant‐specific MRI safety assessments using feedback from commercial deep brain stimulation (DBS) systems. To further use this framework to suppress RF‐induced heating with minimum compromise in imaging performance.
Berk Silemek, Frank Seifert, Mevlüt Yalaz, Michael Höft, Günther Deuschl, Arzu Has Silemek, Rüdiger Brühl, Bernd Ittermann, Lukas Winter   +8 more
wiley   +1 more source

The Effect of Voxel Volume and Voxel Shape on Cardiac Diffusion Tensor Imaging Metrics

Magnetic Resonance in Medicine, Volume 95, Issue 4, Page 2063-2077, April 2026.
ABSTRACT Purpose Cardiac diffusion tensor imaging (cDTI) is signal‐to‐noise ratio (SNR)‐limited due to diffusion signal attenuation, long echo times from gradient moment nulling, and moderate myocardial T 2$$ {}_2 $$. Increasing voxel volume improves SNR but reduces spatial sensitivity and introduces physiological bias.
Ariel J. Hannum, Tyler E. Cork, Kawin Setsompop, Daniel B. Ennis   +3 more
wiley   +1 more source

Feasibility Study for Dual Phase Free Breathing 3D bSSFP MRA With Preserved Eddy‐Current Tolerance With Adaptive k‐Space Lengths (PETAL) Acquisition

Magnetic Resonance in Medicine, Volume 95, Issue 4, Page 2078-2091, April 2026.
ABSTRACT Purpose To demonstrate the feasibility of a novel dual‐phase self‐navigated, free‐breathing balanced steady‐state free‐precession whole‐heart MRA acquisition for aortic annulus size measurement using a Cartesian trajectory that mitigates eddy‐current artifacts by minimizing k‐space jumps between consecutive readouts with predictable scan times.
Tassia Ribeiro Salles Moura, Dingheng Mai, Emma Wexler, Lydia P. Lewis, Wajeh Abuirmaileh, Angel Houston, Kathy Kohut, Eric Roselli, Deborah Kwon, David Chen, Danielle Kara, Christopher T. Nguyen   +11 more
wiley   +1 more source

Denoising Low‐Power CEST Imaging Using a Deep Learning Approach With a Dual‐Power Feature Preparation Strategy

Magnetic Resonance in Medicine, Volume 95, Issue 3, Page 1410-1428, March 2026.
ABSTRACT Purpose: Low‐power (LP) chemical exchange saturation transfer (CEST) Z‐spectra have significantly reduced confounding effects and enhanced peak resolvability, thereby improving the observation and quantification of various CEST effects. However, LP Z‐spectra suffer greatly from reduced contrast‐to‐noise ratio (CNR).
Yashwant Kurmi, Malvika Viswanathan, Leqi Yin, You Chen, Xiaoyu Jiang, Junzhong Xu, Zhongliang Zu   +6 more
wiley   +1 more source

On the Impact of Artifacts Induced by Mismatches Between Auto‐Calibration Signal and Accelerated 3D GRE Data at 11.7T

Magnetic Resonance in Medicine, Volume 95, Issue 3, Page 1440-1447, March 2026.
ABSTRACT Purpose The study aims at investigating B0$$ {B}_0 $$ field inhomogeneity artifacts arising from remote locations in the FOV and encountered in accelerated 3D gradient‐recalled echo (GRE) sequences at ultra‐high field, and at providing mitigation strategies.
Joseph Obriot, Franck Mauconduit, Vincent Gras, Chaithya Giliyar Radhakrishna, Maxime Bertrait, Philipp Ehses, Rüdiger Stirnberg, Caroline Le Ster, Nicolas Boulant   +8 more
wiley   +1 more source

Motion Correction in High‐Resolution 3D Brain MRSI Without Water and Lipid Suppression

Magnetic Resonance in Medicine, Volume 95, Issue 3, Page 1323-1335, March 2026.
ABSTRACT Purpose To develop an effective method for correcting head motion in high‐resolution, non‐water‐suppressed MRSI. Methods MRSI scans are susceptible to subject motion due to the long data acquisition time required for sufficient spatial‐spectral encodings.
Ziwen Ke, Yibo Zhao, Rong Guo, Yudu Li, Wen Jin, Huixiang Zhuang, Yao Li, Zhi‐Pei Liang   +7 more
wiley   +1 more source

Online Spatiotemporally Constrained Reconstruction for Real‐Time Interactive MRI

Magnetic Resonance in Medicine, Volume 95, Issue 3, Page 1644-1652, March 2026.
ABSTRACT Purpose To develop a low‐latency dynamic MRI reconstruction that provides better spatial and temporal fidelity than contemporary online reconstruction, for localization. Methods We utilize online spatiotemporally constrained reconstruction (STCR) using a computationally efficient augmented Lagrangian solution and a limited number of iterations
Duc H. Le, Prakash Kumar, Ecrin Yagiz, Ye Tian, Krishna S. Nayak   +4 more
wiley   +1 more source

Multi‐Frame Image Registration for Automated Ventricular Function Assessment in Single Breath‐Hold Cine MRI Using Limited Labels

Magnetic Resonance in Medicine, Volume 95, Issue 3, Page 1762-1777, March 2026.
ABSTRACT Purpose This study aims to develop an automated framework for operator‐independent assessment of cardiac ventricular function from highly accelerated images. Methods We introduce a deep learning framework that generates reliable ventricular volumetric parameters and strain measures from fully sampled and retrospectively accelerated MR images ...
Aya Ghoul, Paxstan Cassal Paulson, Andreas Lingg, Patrick Krumm, Kerstin Hammernik, Daniel Rueckert, Sergios Gatidis, Thomas Küstner   +7 more
wiley   +1 more source

Optimization of Pulsed Saturation Transfer MR Fingerprinting (ST MRF) Acquisition Using the Cramér–Rao Bound and Sequential Quadratic Programming

Magnetic Resonance in Medicine, Volume 95, Issue 3, Page 1778-1790, March 2026.
ABSTRACT Purpose To develop a method for optimizing pulsed saturation transfer MR fingerprinting (ST MRF) acquisition. Methods The Cramér–Rao bound (CRB) for variance assessment was employed on Bloch–McConnell‐based simulated signals, followed by a numerical sequential quadratic programming optimization and basin‐hopping avoidance of local minima ...
Nikita Vladimirov, Moritz Zaiss, Or Perlman   +2 more
wiley   +1 more source