Results 1 to 10 of about 4,359,782 (346)

Active tactile discrimination is coupled with and modulated by the cardiac cycle [PDF]

open access: yeseLife, 2022
Perception and cognition are modulated by the phase of the cardiac signal in which the stimuli are presented. This has been shown by locking the presentation of stimuli to distinct cardiac phases.
Alejandro Galvez-Pol   +3 more
doaj   +3 more sources

Human intracranial pulsatility during the cardiac cycle: a computational modelling framework. [PDF]

open access: yesFluids 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

Parkinson’s Disease and the Cardiac Cycle: A Rapid Literature Review and Case Series [PDF]

open access: yesLife, 2023
Background and Objectives: Cardiac function in patients with Parkinson’s Disease (PD) is not well understood. We conducted a review of the literature to summarize all available data on the cardiac cycle in patients with PD and followed up the review with
Holly Bardutz   +3 more
doaj   +2 more sources

A tomographic microscopy-compatible Langendorff system for the dynamic structural characterization of the cardiac cycle [PDF]

open access: yesFrontiers in Cardiovascular Medicine, 2022
IntroductionCardiac architecture has been extensively investigated ex vivo using a broad spectrum of imaging techniques. Nevertheless, the heart is a dynamic system and the structural mechanisms governing the cardiac cycle can only be unveiled when ...
Hector Dejea   +15 more
doaj   +2 more sources

Dynamic Changes in the Aorta During the Cardiac Cycle Analyzed by ECG-Gated Computed Tomography [PDF]

open access: yesFrontiers in Cardiovascular Medicine, 2022
BackgroundTo characterize the difference in aortic dimensions during the cardiac cycle with electrocardiogram (ECG)-gated computed tomography angiography (CTA) and to determine whether other parameters in comparison to diameter could potentially provide ...
Wenying Zhu   +19 more
doaj   +2 more sources

Correlation between the rate of morphological changes and rupture of intracranial aneurysms during one cardiac cycle analyzed by 4D-CTA [PDF]

open access: yesFrontiers in Neurology, 2023
ObjectiveThis study aimed to analyze the relationship between the rate of morphological changes and intracranial aneurysm rupture during the cardiac cycle.MethodsEighty-four patients with intracranial aneurysms were retrospectively analyzed and divided ...
Binghao Wang   +14 more
doaj   +2 more sources

Electrokymographic Studies of the Normal Cardiac Cycle [PDF]

open access: bronzeCirculation, 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.
Henry Mednick   +2 more
openalex   +4 more sources

Uncertainty quantification and sensitivity analysis of left ventricular function during the full cardiac cycle. [PDF]

open access: yesPhilos 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

Cardiac Cycle Affects the Asymmetric Value Updating in Instrumental Reward Learning [PDF]

open access: yesFrontiers in Neuroscience, 2022
This study aimed to investigate whether instrumental reward learning is affected by the cardiac cycle. To this end, we examined the effects of the cardiac cycle (systole or diastole) on the computational processes underlying the participants’ choices in ...
Kenta Kimura   +4 more
doaj   +2 more sources

Influence of the cardiac cycle on pCASL: cardiac triggering of the end-of-labeling [PDF]

open access: yesMagnetic 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
openaire   +5 more sources

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