Results 11 to 20 of about 153,562 (315)

Acute and Long-Term Effects of Aortic Compliance Decrease on Central Hemodynamics: A Modeling Analysis

open access: yesFrontiers in Physiology, 2021
Aortic compliance is an important determinant of cardiac afterload and a contributor to cardiovascular morbidity. In the present study, we sought to provide in silico insights into the acute as well as long-term effects of aortic compliance decrease on ...
Stamatia Pagoulatou   +4 more
doaj   +1 more source

On the similarity between aortic and carotid pressure diastolic decay: a mathematical modelling study

open access: yesScientific Reports, 2023
Aortic diastolic pressure decay (DPD) has been shown to have considerable pathophysiological relevance in the assessment of vascular health, as it is significantly affected by arterial stiffening.
Vasiliki Bikia   +3 more
doaj   +1 more source

AI-Based Estimation of End-Systolic Elastance From Arm-Pressure and Systolic Time Intervals

open access: yesFrontiers in Artificial Intelligence, 2021
Left ventricular end-systolic elastance (Ees) is a major determinant of cardiac systolic function and ventricular-arterial interaction. Previous methods for the Ees estimation require the use of the echocardiographic ejection fraction (EF).
Vasiliki Bikia   +4 more
doaj   +1 more source

Validation of a Non-invasive Inverse Problem-Solving Method for Stroke Volume

open access: yesFrontiers in Physiology, 2022
Stroke volume (SV) is a major biomarker of cardiac function, reflecting ventricular-vascular coupling. Despite this, hemodynamic monitoring and management seldomly includes assessments of SV and remains predominantly guided by brachial cuff blood ...
Vasiliki Bikia   +6 more
doaj   +1 more source

Quantification of the Phenomena Affecting Reflective Arterial Photoplethysmography

open access: yesBioengineering, 2023
Photoplethysmography (PPG) is a widely emerging method to assess vascular health in humans. The origins of the signal of reflective PPG on peripheral arteries have not been thoroughly investigated.
Georgios Rovas   +2 more
doaj   +1 more source

Hemodynamics [PDF]

open access: yes, 2012
Hemodynamics is study of the mechanical and physiologic properties controlling blood pressure and flow through the body. The factors influencing hemodynamics are complex and extensive.

core   +2 more sources

Cardio-ankle vascular index (CAVI) measured by a new device: protocol for a validation study

open access: yesBMJ Open, 2020
Introduction Cardio‐ankle vascular index (CAVI) is a new marker of arterial stiffness (AS) that can assess vascular wall stiffness in the aorta, femoral artery and tibial artery. CAVI is less affected by blood pressure at the time of measurement than the
Sergio Rico Martín   +7 more
doaj   +1 more source

Short-channel regression in functional near-infrared spectroscopy is more effective when considering heterogeneous scalp hemodynamics. [PDF]

open access: yes, 2020
Significance: The reliability of functional near-infrared spectroscopy (fNIRS) measurements is reduced by systemic physiology. Short-channel regression algorithms aim at removing systemic "noise" by subtracting the signal measured at a short source ...
Lambercy, Olivier   +5 more
core   +1 more source

Role of arterial stiffness and central hemodynamics in personalized medicine in hypertension

open access: yes, 2023
[[abstract]]To achieve optimal health and medical outcomes, personalized medicine has been proposed to exploit diagnostic and screening methods that utilize the knowledge of the patient's unique personal profile obtained in healthcare for improving the ...
Cheng, HM;Chuang, SY;Sung, SH;Chen, CH
core   +1 more source

Arterial Wave Reflection and Aortic Valve Stenosis: Diagnostic Challenges and Prognostic Significance

open access: yesFrontiers in Cardiovascular Medicine, 2022
IntroductionArterial wave reflection is an important component of the left ventricular afterload, affecting both pressure and flow to the aorta. The aim of the present study was to evaluate the impact of wave reflection on transvalvular pressure ...
Stamatia Pagoulatou   +10 more
doaj   +1 more source

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