Results 221 to 230 of about 111,366 (373)

Systolic‐dominant coronary flow in rats and mice: Challenging the diastolic paradigm across conscious and anaesthetized states

open access: yesExperimental Physiology, EarlyView.
Abstract Extensive research in humans, dogs, rabbits, rats, mice and other mammals has consistently demonstrated that coronary blood flow (CBF) peaks during ventricular diastole. For example, studies using transthoracic Doppler echocardiography in anaesthetized rats and mice, isolated blood‐perfused rat hearts and Doppler probes sutured to the ...
Heidi L. Lujan   +2 more
wiley   +1 more source

Cardiac conduction system and the electrocardiogram of the common hippopotamus (Hippopotamus amphibius)

open access: yesExperimental Physiology, EarlyView.
Abstract The common hippopotamus (Hippopotamus amphibius) shares a common terrestrial ancestor with whales (Cetacea) and has independently evolved similar physiological adaptations to their aquatic lifestyle. Although several studies have explored the electrical signalling in whale hearts, the understanding of the conduction system and electrical ...
Morten B. Thomsen   +12 more
wiley   +1 more source

Circumferential strain and strain rates of the descending aorta as novel measures of aortic stiffness and wall mechanics from standard cardiac MRI

open access: yesExperimental Physiology, EarlyView.
Abstract During standard cardiovascular magnetic resonance (CMR) the horizontal long‐axis cine image (i.e., 4‐chamber) is captured which includes a cross‐section of the descending aorta. The aortic cross‐section can be used to assess aortic stiffness (distensibility; ∆area/pressure) or circumferential strain (percentage vascular deformation).
Denis J. Wakeham   +13 more
wiley   +1 more source

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