Results 81 to 90 of about 15,984 (208)

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

Easy Diagnosis of Aortic Invasion in Patients with Lung Cancer Using Cine Magnetic Resonance Imaging

Case Reports in Oncology, 2015
Selecting the proper treatment strategy for locally advanced lung cancer, such as T4 tumors, is difficult. Therefore, obtaining an accurate diagnosis of T4 tumors is required. It can be difficult to determine whether the tumor invades adjacent structures.
Hidetaka Uramoto, Hiroyasu Kinoshita, Yuki Nakajima, Hirohiko Akiyama   +3 more
doaj   +1 more source

Sex differences in cerebral blood flow and cardiac function in response to exercise in the heat

Experimental Physiology, EarlyView.
Abstract We investigated the effect of exercising in hot conditions on cerebral blood flow and systolic left ventricular (LV) function in males and females, to explore sex differences. The experimental condition consisted of walking on a treadmill at 5 km/h and 2% incline, inside a heat chamber at 40°C (50% relative humidity), for 90 min.
João Carlos Locatelli, Juliene G. Costa, Kristanti W. Wigati, Jesse L. Criddle, Julie J. Collis, Xingwei Xu, Louise H. Naylor, Howard H. Carter, Shane K. Maloney, Robert A. McLaughlin, Andrew Haynes, Helen Jones, Keith George, Daniel J. Green   +13 more
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

Enhancing stroke risk stratification in atrial fibrillation through non‐Newtonian blood modelling and Gaussian process emulation

The Journal of Physiology, EarlyView.
Abstract figure legend Non‐Newtonian modelling and GPEs for stroke risk in atrial fibrilation patients. Abstract Atrial fibrillation (AF) is the most common heart arrhythmia, linked to a five‐fold increase in stroke risk. The left atrial appendage (LAA), prone to blood stasis, is a common thrombus formation site in AF patients.
Paolo Melidoro, Abdel Rahman Amr Sultan, Ahmed Qureshi, Magdi H. Yacoub, Khalil L. Elkhodary, Gregory Y. H. Lip, Natalie Montarello, Nishant Lahoti, Ronak Rajani, Magdalena Klis, Steven E. Williams, Oleg Aslanidi, Adelaide De Vecchi   +12 more
wiley   +1 more source

Non-invasive quantification of cardiac stroke volume in the edible crab Cancer pagurus

Frontiers in Zoology, 2019
Background Brachyuran crabs can effectively modulate cardiac stroke volume independently of heart rate in response to abiotic drivers. Non-invasive techniques can help to improve the understanding of cardiac performance parameters of these animals.
Bastian Maus, Sebastian Gutsfeld, Hans-Otto Pörtner, Christian Bock   +3 more
doaj   +1 more source

Cardiac structure and function during ageing in energetically compromised Guanidinoacetate N-methyltransferase (GAMT)-knockout mice – a one year longitudinal MRI study

Journal of Cardiovascular Magnetic Resonance, 2008
Background High-resolution magnetic resonance imaging (cine-MRI) is well suited for determining global cardiac function longitudinally in genetically or surgically manipulated mice, but in practice it is seldom used to its full potential.
Clarke Kieran, Isbrandt Dirk, Hove Michiel, Bell Jordana T, Stork Lee-Anne, Schneider Jürgen E, Watkins Hugh, Lygate Craig A, Neubauer Stefan   +8 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

Cardiac MRI Prescription Planes

MedEdPORTAL, 2014
Magnetic resonance imaging (MRI) has become a major modality for the evaluation of the heart. However, obtaining the standard imaging planes in an efficient manner can be challenging for the novice MRI technician and/or imaging physician.
Mark Ferguson, Randolph Otto
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