Results 131 to 140 of about 43,651 (248)

Magnetic Resonance Guided Radiation Therapy (MRgRT) Prostate Motion and Margins

Journal of Medical Radiation Sciences, Volume 73, Issue 1, Page 44-51, March 2026.
This study evaluated intra‐fractional prostate motion during MR‐guided radiotherapy to determine appropriate PTV margins for prostate cancer. Analysis of 18 patients resulted in calculated margins of 3.2 mm (AP), 1.7 mm (LR), and 3.2 mm (SI), supporting the potential for margin reduction with MRgRT. ABSTRACT Introduction Systematic and random errors in
Sammi Peng, Tegan Courtot, Jessica Lye, Farshad Foroudi, Mark Tacey, Daryl Lim Joon, Michael Chao, Ee Siang Choong   +7 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

GridNet with automatic shape prior registration for automatic MRI cardiac segmentation

, 2017
In this paper, we propose a fully automatic MRI cardiac segmentation method based on a novel deep convolutional neural network (CNN) designed for the 2017 ACDC MICCAI challenge.
Humbert, Olivier, Jodoin, Pierre-Marc, Lalande, Alain, Luo, Zhiming, Zotti, Clement   +4 more
core  

Versatile and Highly Efficient MRI Simulation of Arbitrary Motion in KomaMRI

Magnetic Resonance in Medicine, Volume 95, Issue 3, Page 1791-1803, March 2026.
ABSTRACT Purpose To extend the KomaMRI simulator with motion capabilities that enable the simulation of both simple, parametrizable motion patterns and arbitrarily complex spin trajectories. Additionally, we introduce a novel file format for storing and sharing dynamic digital phantoms.
Pablo Villacorta‐Aylagas, Carlos Andrés Castillo‐Passi, Ryan Anders Kierulf, Rosa María Menchón‐Lara, Justino R. Rodríguez‐Galván, José Benito Sierra‐Pallares, Pablo Irarrazaval, Carlos Alberola‐López   +7 more
wiley   +1 more source

Towards clinical implementation of T2-weighted cine imaging for intrafraction drift correction workflows on the 1.5 Tesla magnetic resonance-linear accelerator

Physics and Imaging in Radiation Oncology
Background and purpose: In magnetic resonance–linear accelerator (MR-Linac) treatments, balanced Turbo Field Echo (bTFE) cine imaging is used to monitor and correct intrafraction motion but provides limited contrast and is prone to artifacts.
Lieke T.C. Meijers, Johannes C.J. de Boer, Jochem R.M. van de Voort van Zyp, Nicole G.P.M. Vissers, Reijer H.A. Rutgers, Eveline Alberts, Jasmijn M. Westerhoff, Alice M. Couwenberg, Marieke I. Snijder-van As, Stefano Mandija, Edwin Versteeg, Martijn P.W. Intven, Bas W. Raaymakers, Astrid L.H.M.W. van Lier   +13 more
doaj   +1 more source

Self-gated late gadolinium enhancement at 7T to image rats with reperfused acute myocardial infarction [PDF]

, 2018
Chen, Wei, Chen, Yushu, Gao, Fabao, Song, Li, Wang, Chunhua, Wang, Lei, Xu, Ziqian, Zhang, Bing, Zheng, Jie   +8 more
core   +2 more sources

Coronary Artery Blood Flow Imaging Using 3D Flow MRI

Magnetic Resonance in Medicine, Volume 95, Issue 3, Page 1545-1559, March 2026.
ABSTRACT Purpose In this work, a 3D phase contrast (PC) technique is presented, which enables flow velocity measurements in three spatial directions, simultaneously covering the proximal left (LCA) and right (RCA) coronary arteries and yielding both morphological and flow information.
Denise Lichthardt, Michaela Schmidt, Jens Wetzl, Peter Speier, Manuel Hein, Christopher Schuppert, Armin M. Nagel, Daniel Giese   +7 more
wiley   +1 more source

Prospective Respiratory Motion Correction Using Machine Learning and Pilot Tone (PROMPT) in Cardiac MRI

Magnetic Resonance in Medicine, Volume 95, Issue 3, Page 1583-1595, March 2026.
ABSTRACT Purpose To implement and evaluate the feasibility of a Pilot Tone (PT)‐based prospective gating and tracking technique, which uses a long short‐term memory (LSTM) neural network to predict respiratory motion from PT signals. Methods A subject‐specific calibration scan consisting of 100 ECG‐triggered single‐shot images was performed ...
Yue Pan, Ning Jin, Kelvin Chow, Mario Bacher, Peter Speier, Vedat O. Yildiz, Matthew Tong, Yuchi Han, Rizwan Ahmad, Orlando P. Simonetti   +9 more
wiley   +1 more source

Evaluation of the prognostic value of lateral MAPSE in patients with suspected coronary artery disease

International Journal of Cardiology: Heart & Vasculature
Objectives: To evaluate the prognostic value of lateral mitral annular plane systolic excursion (MAPSE) in the prediction of major adverse cardiology events (MACE) in patients with suspected coronary artery disease (CAD).
Chengxi Yan, Ying Chang, FangWu, Minglei Yang, Shuangfeng Dai, Jiannan Zhang, Yuelang Zhang   +6 more
doaj   +1 more source

Brain Pulsation Imaging Using Non‐Balanced Steady‐State Free Precession With 3D‐EPI Readout

Magnetic Resonance in Medicine, Volume 95, Issue 3, Page 1606-1618, March 2026.
ABSTRACT Purpose To present a new, fast MR imaging method for visualization and quantification of pulsatile displacement in brain tissue and fluid. Methods The natural phase‐contrast of non‐balanced steady‐state free precession combined with careful tuning of the intrinsic spoiler gradients is harnessed to measure displacement along specific physical ...
Pål Erik Goa, Simon Blömer, Rüdiger Stirnberg, Tony Stöcker   +3 more
wiley   +1 more source