Results 1 to 10 of about 92,506 (221)

MDCT evaluation of dynamic changes in aortic root parameters during the cardiac cycle in patients with aortic regurgitation [PDF]

open access: yesScientific Reports
Objectives: To investigate the dynamic changes in multiple planes and parameters of the aortic root region at different phases of the cardiac cycle in patients with aortic regurgitation (AR) using multi-detector row computed tomography (MDCT). To provide
Shuai Zhang   +4 more
doaj   +2 more sources

The effect of cardiac phase on distractor suppression and motor inhibition in a stop-signal task [PDF]

open access: yesScientific Reports
Past work has shown that stimuli timed to the cardiac systole, the time at which heartbeat feedback is transmitted to the brain, can be more effectively selected from conflicting information.
Amanda C. Marshall   +4 more
doaj   +2 more sources

Personalized auricular vagus nerve stimulation: beat-to-beat deceleration dominates in systole-gated stimulation during inspiration - a pilot study [PDF]

open access: yesFrontiers in Physiology
Neuromodulation comes into focus as a non-pharmacological therapy with the vagus nerve as modulation target. The auricular vagus nerve stimulation (aVNS) has emerged to treat chronic diseases while re-establishing the sympathovagal balance and activating
Johannes Tischer   +2 more
doaj   +2 more sources

On foliations of bounded mean curvature on closed three-dimensional Riemannian manifolds

open access: yesPracì Mìžnarodnogo Geometričnogo Centru, 2023
The notion of systole of a foliation sys(ℱ) on an arbitrary foliated closed Riemannian manifold (M,ℱ) is introduced. A lower bound on sys(ℱ) of a bounded mean curvature foliation is given.
Dmytry Bolotov
doaj   +1 more source

Diastolic and Systolic Longitudinal Myocardial Velocities of Healthy Racing Pigeons (Columba livia f. domestica) Measured by Tissue Doppler Imaging

open access: yesVeterinary Sciences, 2021
Tissue Doppler imaging (TDI) is a noninvasive sonographic method of acquiring and quantifying myocardial velocities. This technique is used in human and small animal medicine to diagnose cardiac diseases.
Marko Legler   +3 more
doaj   +1 more source

Correlation of physical and functional of cardiovascular young footballer 14-16 years [PDF]

open access: yesPedagogìka, Psihologìâ ta Mediko-bìologìčnì Problemi Fìzičnogo Vihovannâ ì Sportu, 2013
In a competition period were studied the indexes of general and special physical preparedness of young footballers aged 14 - 16 years old. On the basis of research of electrocardiograms dependence of indexes of physical preparedness of young footballers ...
Swistun Y.D.   +3 more
doaj   +1 more source

Numerical study of hemodynamics after stent implantation during the cardiac cycle

open access: yesJournal of Mechanical Engineering and Sciences, 2021
The descending aortic aneurysm is one of the most catastrophic cardiovascular emergencies resulting in high mortality worldwide. Clinical observations have pointed out that stent implantation in the sick aorta should probably allow stabilization of the ...
A. Belaghit   +4 more
doaj   +1 more source

Color Flow Doppler Echocardiography in Healthy Racing Pigeons (Columba livia f. domestica) and the Evidence of Physiological Blood Flow Vortex Formations

open access: yesVeterinary Sciences, 2020
In avian medicine, Doppler sonographic techniques are used to visualize and estimate blood flow in the heart. In the literature there is a lack of standardized studies of the use of color Doppler flow on healthy avian species.
Marko Legler   +3 more
doaj   +1 more source

Systoles in translation surfaces

open access: yesBulletin de la Société mathématique de France, 2021
21 pages, 7 figures.
Boissy, Corentin, Geninska, Slavyana
openaire   +4 more sources

Is there the phenotype of chronic heart failure with “intermediate” left ventricular ejection fraction? Additional echocardiographic criteria for left ventricular systolic dysfunction in patients with chronic heart failure of ischemic origin with ejection fraction in the “gray area”

open access: yesZaporožskij Medicinskij Žurnal, 2021
Patients with chronic heart failure (CHF) with left ventricular ejection fraction (LV EF) in the range of 40–55 % form a separate group with “intermediate” or “moderately reduced” LV EF. Since there are a number of additional criteria in echocardiography
V. V. Syvolap, V. A. Lysenko
doaj   +1 more source

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