Results 81 to 90 of about 20,745 (206)

A Real-Time Four-Dimensional Reconstruction Algorithm of Cine-Magnetic Resonance Imaging (Cine-MRI) Using Deep Learning. [PDF]

Cureus, 2022
Tamura Y, Demachi K, Igaki H, Okamoto H, Nakano M.   +4 more
europepmc   +1 more source

Impaired Windkessel function and proximal aortic stiffness: Linking vascular ageing to cognitive decline

Experimental Physiology, EarlyView.
Abstract Central arterial stiffening, particularly of the proximal aorta, is increasingly recognised as a pivotal contributor to cardiovascular disease, dementia, and mild cognitive impairment. Loss of Windkessel function amplifies pulsatile pressure, reduces diastolic perfusion and accelerates microvascular damage in the brain.
Jun Sugawara, Hirofumi Tanaka
wiley   +1 more source

Apical hypercontractility mitigates impaired diastolic filling and lower intraventricular haemodynamic forces in human bed rest

Experimental Physiology, EarlyView.
Abstract Prolonged physical inactivity alters the cardiovascular system, including the heart. Long‐term bed rest is known to decrease left ventricular volume and cause diastolic dysfunction; however, the interplay between these changes and their effect on cardiac contractility have been understudied.
Jérémy Rabineau, Fatimah Al‐Darwish, Edwin Mulder, Bram F. Coolen, Fabian Hoffmann, David Hautemann, Jens Tank, Pierre‐François Migeotte, Gustav J. Strijkers, Rob C. I. Wüst   +9 more
wiley   +1 more source

Diagnostic Performance of Treadmill Exercise Cardiac Magnetic Resonance: The Prospective, Multicenter Exercise CMR's Accuracy for Cardiovascular Stress Testing (EXACT) Trial

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2016
BackgroundStress cardiac magnetic resonance (CMR) has typically involved pharmacologic agents. Treadmill CMR has shown utility in single‐center studies but has not undergone multicenter evaluation.
Subha V. Raman, Jennifer A. Dickerson, Wojciech Mazur, Timothy C. Wong, Erik B. Schelbert, James K. Min, Debbie Scandling, Cheryl Bartone, Jason T. Craft, Paaladinesh Thavendiranathan, Ernest L. Mazzaferri, John W. Arnold, Robert Gilkeson, Orlando P. Simonetti   +13 more
doaj   +1 more source

Fetal glucose availability: a key regulator of the metabolic, hormonal and contractility profiles of the fetal sheep heart

The Journal of Physiology, EarlyView.
Abstract figure legend To investigate the role of glucose availability in fetal left ventricle (LV) development, this study assessed whether maternal late gestation undernutrition (LGUN; 50% of Control diet) induced alterations in the contractility, metabolic, and hormonal profile can be ameliorated in LGUN fetuses receiving glucose infusion (LGUN+G ...
Melanie R. Bertossa, Jack R. T. Darby, Stacey L. Holman, Steven K. S. Cho, Ashley S. Meakin, Mitchell C. Lock, Jordan A. Minns, Michael D. Wiese, Christopher K. Macgowan, Mike Seed, Janna L. Morrison   +10 more
wiley   +1 more source

Reliability of landmark identification for analysis of the temporomandibular joint in real-time MRI

Head & Face Medicine
Background Real-time magnetic resonance imaging (rtMRI) is essential for diagnosing and comprehending temporomandibular joint (TMJ) movements. Current methods for tracking and analysis require manual landmark placement on each acquisition frame ...
Jérémy Mouchoux, Philipp Meyer-Marcotty, Florian Sojka, Peter Dechent, Daniela Klenke, Bernhard Wiechens, Anja Quast   +6 more
doaj   +1 more source

Optimized Reduced Field of View and Fat Suppression Methods for Interleaved Multislice In Vivo Cardiac Diffusion Tensor Imaging

Magnetic Resonance in Medicine, Volume 96, Issue 3, Page 1097-1110, September 2026.
ABSTRACT Purpose Slice interleaving, a limited phase encode (PE) field of view (FOV), and effective fat suppression are vital for efficient cardiac diffusion tensor imaging (cDTI) with minimal artifacts. This study aimed to optimize reduced FOV and fat suppression methods for interleaved multislice cDTI to improve signal‐to‐noise ratio (SNR) and ...
Yaqing Luo, Pedro F. Ferreira, Ke Wen, Ricardo Wage, Guang Yang, Dudley J. Pennell, Sonia Nielles‐Vallespin, Andrew D. Scott   +7 more
wiley   +1 more source

Quantificação da massa infartada do ventrículo esquerdo pela ressonância magnética cardíaca: comparação entre a planimetria e o método de escore visual semi-quantitativo Quantification of left ventricular infarcted mass on cardiac magnetic resonance imaging: comparison between planimetry and the semiquantitative visual scoring method

Arquivos Brasileiros de Cardiologia, 2004
OBJETIVO: Validar um novo método de escore visual semi-quantitativo contra a planimetria digital quantitativa para a determinação da massa infartada do ventrículo esquerdo pela ressonância magnética cardíaca com técnica de realce tardio.
Clerio Francisco de Azevedo Filho, Marcelo Hadlich, João Luiz Fernandes Petriz, Luís Antonio Mendonça, Jorge Neval Moll Filho, Carlos Eduardo Rochitte   +5 more
doaj   +1 more source

Evaluation of Third‐Order Motion‐Compensated Cardiac Diffusion Tensor Imaging Across Cardiac Phases Using an Ultra‐High‐Performance Clinical Scanner

Magnetic Resonance in Medicine, Volume 96, Issue 3, Page 1365-1378, September 2026.
ABSTRACT Purpose To evaluate a third‐order motion‐compensated spin echo (M3‐MCSE) sequence at multiple cardiac phases on a clinical 3 T MRI scanner with ultra‐high performance (UHP) gradients (200 mT/m), compared with stimulated echo acquisition mode (STEAM) and second‐order MCSE (M2‐MCSE) for cardiac diffusion tensor imaging (cDTI).
Ke Wen, Pedro F. Ferreira, Alberto Di Biase Oemick, Ricardo Wage, Karl P. Kunze, Fanwen Wang, Dudley J. Pennell, Andrew D. Scott, Sonia Nielles‐Vallespin   +8 more
wiley   +1 more source

How low can we go? The effect of acquisition duration on cardiac volume and function measurements in free-running cardiac and respiratory motion-resolved five-dimensional whole-heart cine magnetic resonance imaging at 1.5T

Journal of Cardiovascular Magnetic Resonance
Background: Cardiovascular magnetic resonance (CMR) is the gold standard for assessing cardiac volumes and function using two-dimensional (2D) breath-held cine imaging.
Robert J. Holtackers, Augustin C. Ogier, Ludovica Romanin, Estelle Tenisch, Isabel Montón Quesada, Ruud B. van Heeswijk, Christopher W. Roy, Jérôme Yerly, Milan Prsa, Matthias Stuber   +9 more
doaj   +1 more source