Results 81 to 90 of about 55,187 (266)

The effect of cardiac phase on distractor suppression and motor inhibition in a stop-signal task

Scientific Reports
Past work has shown that stimuli timed to the cardiac systole, the time at which heartbeat feedback is transmitted to the brain, can be more effectively selected from conflicting information.
Amanda C. Marshall, Qiaoyue Ren, Lioba Enk, Junhui Liu, Simone Schütz-Bosbach   +4 more
doaj   +1 more source

Acute Effects of Smoking and Vaping on Markers of Vascular Function via Quantitative MRI

Journal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Background E‐cigarettes contribute to endothelial dysfunction, a known cause of systemic atherosclerotic disease that cannot be adequately characterized by a single physiological parameter measured at a single vascular bed. Purpose/Hypothesis Quantify and compare acute effects of smoking or vaping with tobacco cigarettes (t‐cigs), nicotinized ...
Marianne Nabbout, Mahdie Hosseini, Harris Quach, Michael C. Langham, Alessandra S. Caporale, Wensheng Guo, Kathryn Jaroszynski, Frank T. Leone, Andrew A. Strasser, Felix W. Wehrli   +9 more
wiley   +1 more source

METTL14 Regulates Myocardial Infarction Progression via m6A‐Dependent Modulation of OTUD1‐Mediated Deubiquitination of DUSP6

The Kaohsiung Journal of Medical Sciences, EarlyView.
ABSTRACT Myocardial infarction (MI) is the most severe clinical manifestation of coronary artery diseases (CVD) and serves as a critical driver of sudden cardiac death and heart failure (HF). Its pathophysiology begins with the abrupt cessation of coronary blood flow, leading to severe ischemia and subsequent cardiomyocyte necrosis. This study aimed to
Cheng‐Cheng Wei, Ya‐Fang Shen, Jin‐Yu Zhang   +2 more
wiley   +1 more source

A Simple, Dynamic Geometric Phantom for MRI and CT Reconstruction Pipelines: Beyond Shepp–Logan

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT A customizable, dynamic geometric phantom was developed to bridge the gap between simplistic static phantoms and highly realistic, complex 4D solutions. The phantom enables initial testing, helps detect implementation errors, and supports quantitative evaluation of new dynamic acquisition and reconstruction methods.
Tamás Hakkel, Noémi Kovács, József Sinkó, Domokos Máthé, Krisztián Szigeti   +4 more
wiley   +1 more source

Fuzzy logika alkalmazása a páciens monitorozásban

Bánki Közlemények, 2019
Az orvosi gyakorlatban az emberi szervezetben mérhető értékekhez a legtöbb esetben egy általános határértéket adnak meg, hogy az adott paraméter mettől-meddig normál értékű. A valóságban a határok egyénenként változnak, mert a korunk, a környezetünk, az
Anna Krisztina Tamás, Edit Tóth-Laufer
doaj  

Deep Learning‐Based Dynamic Segmentation of the Left Atrium in 4D Flow MRI

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To design a deep learning pipeline for automated, time‐resolved segmentation of the left atrium (LA) from 4D flow MRI data. Methods We studied 100 individuals including 65 patients with atrial fibrillation (AF) and 35 healthy subjects (HS) resulting in 2530 4D flow MRI time‐volumes acquired in different centers and scanners.
Jonas Leite, Tom Da‐Silva Faria, Marie Shannon Soulez, Khaoula Bouazizi, Perrine Marsac, Elie Mousseaux, Jérôme Lamy, Moussa Gueda Moussa, Olivier Piot, Jacques Feignoux, Daniel Giese, Nicolas Badenco, Estelle Gandjbakhch, Alban Redheuil, Mikaël Laredo, Emilie Bollache, Nadjia Kachenoura   +16 more
wiley   +1 more source

Atrial cardiomyopathy

ESC Heart Failure, Volume 12, Issue 2, Page 727-729, April 2025.
Wojciech Kosmala, Monika Przewłocka‐Kosmala   +1 more
wiley   +1 more source

Comparative Performance Analysis of an Open Source Motion‐Compensated Cardiac Diffusion Sequence Across Different MRI Systems and Gradient Strengths—A Pilot Study

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To validate the performance of an open‐source cardiac diffusion sequence framework and to investigate hardware‐based performance differences. Methods Three second order motion compensated sequence files were compiled using Pulseq and applied across different MRI systems to image five volunteers.
Eric Arbes, Ariel Hannum, Johannes Fischer, Qingping Chen, Sebastian Littin, Alexander Maier, Michael Bock, Simon Reiss   +7 more
wiley   +1 more source

Validation of Aortic Blood Flow Simulations During Extracorporeal Circulation Using Phase Contrast Magnetic Resonance Imaging

Artificial Organs, EarlyView.
This is the first study assessing in vivo blood flow profiles during extracorporeal circulation (ECC) scenarios. Magnetic resonance imaging data served for the calibration of computational fluid dynamics algorithms, enabling accurate replication of the hemodynamic conditions.
Anna Kathrin Assmann, Sinje Reimers, Jonah S. Schrauder, Lei Qu, Xiangge Yin, Amir Moussavi, Artur Lichtenberg, Susann Boretius, Michael Neidlin, Alexander Assmann   +9 more
wiley   +1 more source

Mitral regurgitation and decompensated heart failure in a young pregnant pony mare: An aetiological challenge

Equine Veterinary Education, EarlyView.
Summary A 4‐year‐old, 6‐month pregnant, Welsh pony mare presented with severe acute clinical signs including depression, anorexia, pale mucous membranes, tachycardia with a grade 4/6 holosystolic murmur and moderate expiratory dyspnoea with diffuse wheezes. There was no evidence of placentitis or fetal distress.
M. F. David, L. Cannon, A. Tortereau, A. Thomas‐Cancian, I. Desjardins   +4 more
wiley   +1 more source