Results 11 to 20 of about 531,305 (348)

Regulation of Cardiomyocyte Mechanotransduction by the Cardiac Cycle [PDF]

open access: bronzeCirculation, 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 ...
Keiji Yamamoto   +5 more
openalex   +4 more sources

Design and testing of an MRI-compatible cycle ergometer for non-invasive cardiac assessments during exercise [PDF]

open access: yesBioMedical Engineering OnLine, 2012
Background Magnetic resonance imaging (MRI) is an important tool for cardiac research, and it is frequently used for resting cardiac assessments. However, research into non-pharmacological stress cardiac evaluation is limited.
Gusso Silmara   +6 more
doaj   +5 more sources

Relationships between irregular pulsation and variations in morphological characteristics during the cardiac cycle in unruptured intracranial aneurysms by 4D-CTA [PDF]

open access: yesFrontiers in Neurology
Background and purposeIrregular pulsation of the aneurysmal wall has been suggested as a novel predictor for aneurysm rupture. Aneurysm volume variations during the cardiac cycle and the association between irregular pulsation and morphological features ...
Shiyao Chen   +5 more
doaj   +2 more sources

Distinct effects of inflammation on preconditioning and regeneration of the adult zebrafish heart [PDF]

open access: yesOpen Biology, 2016
The adult heart is able to activate cardioprotective programmes and modifies its architecture in response to physiological or pathological changes. While mammalian cardiac remodelling often involves hypertrophic expansion, the adult zebrafish heart ...
Anne-Sophie de Preux Charles   +4 more
doaj   +3 more sources

The cardiac cycle

open access: bronzeJournal of Cardiothoracic and Vascular Anesthesia, 1991
Joseph Grayzel
openalex   +3 more sources

Early signs of disorders of cardiovascular biomechanics [PDF]

open access: yesНаука и инновации в медицине, 2021
Aim a comprehensive study of disorders of the biomechanics of blood circulation for early diagnostics of atherosclerosis. Material and methods.
Andrei A. Garanin
doaj   +1 more source

Synchronization of Wave Flows of Arterial and Venous Blood with Phases of the Cardiac Cycle in Norm: Part 5 [PDF]

open access: yesInternational Journal of Biomedicine, 2022
The muscular-fibrous frame of the heart (MFFH) synchronizes and compensates for the pressor effect of the myocardium between the high/low-energy regions (left/right) of the heart. The anatomical structures of MFFH (plastic muscular-fibrous formation with
Alexander G. Kruglov   +3 more
doaj   +1 more source

The Variation in the Diastolic Period with Interventricular Septal Displacement and Its Relation to the Right Ventricular Function in Pulmonary Hypertension: A Preliminary Cardiac Magnetic Resonance Study

open access: yesDiagnostics, 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
doaj   +1 more source

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]

open access: yesInternational 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
doaj   +1 more source

Synchronization of Wave Flows of Arterial and Venous Blood with Phases of the Cardiac Cycle in Norm: Part 1 [PDF]

open access: yesInternational Journal of Biomedicine, 2018
Hemodynamic indices studied in practically healthy people were obtained by catheterization in various vascular areas: the chambers of the heart (left ventricle, right ventricle, left atrium, right atrium, coronary sinus), pulmonary trunk, aorta, inferior
Alexander Kruglov   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy