Results 1 to 10 of about 535,058 (410)
Towards a glaucoma risk index based on simulated hemodynamics from fundus images [PDF]
arXiv, 2018 Glaucoma is the leading cause of irreversible but preventable blindness in the world. Its major treatable risk factor is the intra-ocular pressure, although other biomarkers are being explored to improve the understanding of the pathophysiology of the disease.
J. Orlando +5 more
arxiv +2 more sources
Pharmacology Research & Perspectives, 2021 The stability of hemodynamics during anesthesia induction in patients undergoing valve replacement surgery is particularly important. Remimazolam is a new type of benzodiazepine drug, with supposed advantages of rapid induction, rapid recovery, stable ...
Tianxi Liu +6 more
semanticscholar +1 more source
Frontiers 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
AI-Based Estimation of End-Systolic Elastance From Arm-Pressure and Systolic Time Intervals
Frontiers 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
Scientific 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
Validation of a Non-invasive Inverse Problem-Solving Method for Stroke Volume
Frontiers 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
Bioengineering, 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
Dual-slope imaging of cerebral hemodynamics with frequency-domain near-infrared spectroscopy [PDF]
Neurophoton. 10(1), 013508 (2023), 2022 Significance: This work targets the contamination of optical signals by superficial hemodynamics, which is one of the chief hurdles in non-invasive optical measurements of the human brain. Aim: To identify optimal source-detector distances for Dual-Slope (DS) measurements in Frequency-Domain (FD) Near-InfraRed Spectroscopy (NIRS) and demonstrate ...
arxiv +1 more source
Altered Hemodynamics and End-Organ Damage in Heart Failure
Circulation, 2020 Heart failure is characterized by pathologic hemodynamic derangements, including elevated cardiac filling pressures (“backward” failure), which may or may not coexist with reduced cardiac output (“forward” failure).
F. Verbrugge +3 more
semanticscholar +1 more source