Results 101 to 110 of about 14,398 (231)
Experimental Physiology, EarlyView.Abstract Menopause increases coronary heart disease risk, in part through reduced oestrogen‐mediated nitric oxide (NO) bioavailability. The Buckberg ratio, an index of myocardial oxygen supply–demand balance, in which higher values reflect more favourable myocardial perfusion, is lower in postmenopausal females (PMFs) than in age‐matched males.
Cassandra C. Derella +6 more
wiley +1 more source
Traumatic arteriovenous fistula after ice axe injury 27 years ago: A case report
Experimental Physiology, EarlyView.Abstract We report a case of a traumatic arteriovenous fistula (AVF) between the superficial femoral artery and femoral vein that went undetected for 27 years following an ice axe injury during a climbing accident in 1997. An AVF is an abnormal connection between an artery and a vein, where blood flows directly from the high‐flow arterial system to the
Kate N. Thomas +4 more
wiley +1 more source
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 +10 more
wiley +1 more source
High‐altitude headache: Insights into pathophysiology and potential treatment implications
The Journal of Physiology, EarlyView.Abstract figure legend High‐altitude headache occurs during prolonged exposure to low oxygen, such as during ascent to high altitude. Several risk factors increase its likelihood, with the degree of hypoxia, often driven by rapid ascent to greater altitudes, being the most prominent factor.
Marika Falla +3 more
wiley +1 more source
The Journal of Physiology, EarlyView.Abstract figure legend We proposed a computational constitutive modelling framework that leverages longitudinal acquisitions of haemodynamic waveforms at multiple arterial locations to achieve a biomechanical characterisation of their (micro)structural remodelling processes.
Alessandro Giudici +9 more
wiley +1 more source
Magnetic Resonance in Medicine, Volume 96, Issue 4, Page 1605-1616, October 2026.ABSTRACT Purpose To validate a method to assess cardiac and respiratory brain pulsations in slowly sampled dynamic MR scans. Cardiac and respiratory pulsations are key drivers of neurofluid circulation. However, resolving their temporal dynamics requires fast imaging, which is not achievable in many dynamic MR acquisitions.
Adam M. Wright +3 more
wiley +1 more source
DynaTOF: Time‐Resolved Noncontrast Cerebral MR Angiography Using Spatially Modulated RF Saturation
Magnetic Resonance in Medicine, Volume 96, Issue 3, Page 1134-1147, September 2026.ABSTRACT Purpose To develop a time‐resolved extension of three‐dimensional time‐of‐flight MR angiography, termed Dynamic TOF (DynaTOF), that exploits intrinsic RF saturation behavior to enable noncontrast visualization of cerebrovascular hemodynamics.
Naoyuki Takei +9 more
wiley +1 more source
5D Flow MRI Reveals Respiration‐Driven Changes in Blood Flow Energetics in Congenital Heart Disease
Magnetic Resonance in Medicine, Volume 96, Issue 3, Page 1342-1354, September 2026.ABSTRACT Purpose Hemodynamic monitoring is essential for patients with right‐sided congenital heart disease (CHD). Respiration may have an increased impact on pulmonary flow in these patients that cannot be assessed by standard tools including 4D flow MRI. This study uses 5D flow MRI to assess respiratory‐cycle variations in flow energetics in patients
Thara Nallamothu +7 more
wiley +1 more source
Sex differences in cerebral pulsatility and damping: A 4D flow MRI study
Experimental PhysiologyCerebral pulsatility is a potential marker of cerebrovascular health, yet little is understood about sex differences in cerebral pulsatility with age, especially within different cerebral arteries.
Sarean Harmoni A. Gaynor‐Metzinger +14 more
doaj +1 more source
Ultrafast fMRI Detects Age‐Related Changes in Harmonics of Cardiac Pulsations in the Brain at 7 T
Magnetic Resonance in Medicine, Volume 96, Issue 3, Page 1206-1218, September 2026.ABSTRACT Purpose Aging impacts pulsatility of blood vessels in the brain, reflecting vascular health. Resolving characteristics of cardiac pulsatility requires faster acquisitions than traditional fMRI. An ultrafast fMRI method was developed and applied to sample several harmonics of cardiac pulsations at 7 T.
Charles Marchini +5 more
wiley +1 more source