Results 11 to 20 of about 4,669,181 (269)
Electrokymographic Studies of the Normal Cardiac Cycle [PDF]
Circulation, 1950 Normal subjects were studied by employing two electrokymograms simultaneously. By comparing the sequence of events in the carotid pulse, auricle and ventricle, measurements were made of the phases of the cardiac cycle. The normal electrokymogram is discussed and illustrated.
Philip Samet +2 more
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Regulation of Cardiomyocyte Mechanotransduction by the Cardiac Cycle [PDF]
Circulation, 2001 Background —Overloading the left ventricle in systole (pressure overload) is associated with a distinct morphological response compared with overload in diastole (volume overload). Methods and Results —We designed a novel computer-controlled experimental system that interfaces ...
Hayden Huang +5 more
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Influence of the cardiac cycle on pCASL: cardiac triggering of the end-of-labeling [PDF]
Magnetic Resonance Materials in Physics, Biology and Medicine, 2017 In arterial spin labeling (ASL), the cardiac cycle might adversely influence signal-stability by varying the amount of label created, labeling efficiency and/or transport times. Due to the long labeling duration in pseudo-Continuous ASL (pCASL), the blood labeled last contributes most to the ASLsignal.
Verbree, J., Osch, M.J.P. van
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Human intracranial pulsatility during the cardiac cycle: a computational modelling framework. [PDF]
Fluids Barriers CNS, 2022 Background Today’s availability of medical imaging and computational resources set the scene for high-fidelity computational modelling of brain biomechanics. The brain and its environment feature a dynamic and complex interplay between the tissue, blood,
Causemann M, Vinje V, Rognes ME.
europepmc +4 more sources
A puzzle used to teach the cardiac cycle [PDF]
Advances in Physiology Education, 2015 The aim of the present article is to describe a puzzle developed for use in teaching cardiac physiology classes. The puzzle presents figures of phases of the cardiac cycle and a table with five columns: phases of cardiac cycle, atrial state, ventricular state, state of atrioventricular valves, and pulmonary and aortic valves. Chips are provided for use
Francisco Carlos Groppo +9 more
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Diagnostics, 2022 Background: Pulmonary hypertension (PH) is known to alter the biventricular shape and temporal phases of the cardiac cycle. The presence of interventricular septal (IVS) displacement has been associated with the severity of PH.
Fan Yang +8 more
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Uncertainty quantification and sensitivity analysis of left ventricular function during the full cardiac cycle. [PDF]
Philos Trans A Math Phys Eng Sci, 2020 Patient-specific computer simulations can be a powerful tool in clinical applications, helping in diagnostics and the development of new treatments. However, its practical use depends on the reliability of the models.
Campos JO +3 more
europepmc +2 more sources
Synchronization of Wave Flows of Arterial and Venous Blood and Phases of the Cardiac Cycle with the Structure of the Peripheral Pulse Wave in Norm: Part 2 [PDF]
International Journal of Biomedicine, 2018 Hemodynamic indices studied in practically healthy people were obtained by catheterization in various vascular areas: the chambers of the heart (ventricles, atria, coronary sinus), pulmonary trunk, aorta, inferior vena cava, superior vena cava, right ...
Alexander G. Kruglov +3 more
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Synchronization of Wave Flows of Arterial and Venous Blood and Phases of the Cardiac Cycle: Part 4 [PDF]
International Journal of Biomedicine, 2019 Hemodynamic indices of healthy people obtained by catheterization in such vascular areas as the chambers of the heart (both ventricles, both atria, coronary sinus), IVC, SVC, RHV, right renal vein, sigmoid sinus, and aorta were analyzed.
Alexander G. Kruglov +3 more
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Bioengineering, 2022 Cardiac diseases and failure make up one of largest contributions to global mortality and significantly detriment the quality of life for millions of others.
Nicholas Pearce, Eun-jin Kim
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