Category
Circulatory system
Related publications (138)
A single-beat algorithm to discriminate farfield from nearfield bipolar voltage electrograms from the pulmonary veins
Jean-Marc Vesin, Adrian Luca, Vincent Schlageter
Background Superimposition of farfield (FF) and nearfield (NF) bipolar voltage electrograms (BVE) complicates the confirmation of pulmonary vein (PV) isolation after catheter ablation of atrial fibrillation. Our aim was to develop an automatic algorithm ba ...
SPRINGER2023Reactivating sealed joints: rock strength reduction and permeability enhancement … sometimes
Alexandra Roma Larisa Kushnir, Michael Heap
Rock masses are often criss-crossed by generations of discontinuities, including veins, fractures, and joints. The presence of fractures and joints can increase rock mass permeability and decrease rock mass strength. However, fluid flow within rock masses ...
2023Quantification of the Phenomena Affecting Reflective Arterial Photoplethysmography
Nikolaos Stergiopoulos, Georgios Rovas, Vasiliki Bikia
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. We aimed to identify and quantify the optical and biomecha ...
MDPI2023Plasma biomarkers for Alzheimer's disease: a field-test in a memory clinic
Background The key Alzheimer's disease (AD) biomarkers are traditionally measured with techniques/exams that are either expensive (amyloid-positron emission tomography (PET) and tau-PET), invasive (cerebrospinal fluid A beta 42 and p-tau 181), or poorly sp ...
BMJ PUBLISHING GROUP2023Compliance-matching vascular grafts with personalization potential
Aortic diseases are characterized by dire prognosis and inadequate diagnosis, owing to their insidious yet lethal nature. Aortopathies, namely aortic aneurysms and dissections, along with certain congenital diseases, might necessitate surgical replacement ...
EPFL2023A mathematical model that integrates cardiac electrophysiology, mechanics, and fluid dynamics: Application to the human left heart
We propose a mathematical and numerical model for the simulation of the heart function that couples cardiac electrophysiology, active and passive mechanics and hemodynamics, and includes reduced models for cardiac valves and the circulatory system. Our mod ...
WILEY2023Correlation between conduction velocity and frequency analysis in patients with atrial fibrillation using high-density charge mapping
Spectral analysis of atrial signals has been used to identify regions of interest in atrial fibrillation (AF). However, the relationship to the atrial substrate is unclear. In this study, we compare regions with dominant frequency (DF), simultaneously dete ...
SPRINGER HEIDELBERG2022Sensor-integrated ultraflexible endovascular devices
Medical interventions in the central nervous system (CNS) are challenging due to the complexity and delicacy of the brain tissue. Techniques that do not require opening the skull would alleviate patient discomfort and increase post-operative outputs. Vesse ...
EPFL2022p-Aminobenzamidine attenuates cardiovascular dysfunctions in spontaneously hypertensive rats
Nikolaos Stergiopoulos, Fabiana Pereira Da Costa Fraga, Allancer Divino De Carvalho Nunes
Aims:Diminazene aceturate, a putative ACE2 activator, is susceptible to cleavage resulting in the formation of paminobenzamidine (PAB). This study aimed to investigate the effects of PAB in addressing cardiovascular dysfunctions in spontaneously hypertensi ...
PERGAMON-ELSEVIER SCIENCE LTD2022Distinct types of plexiform lesions identified by synchrotron-based phase-contrast micro-CT
In pulmonary arterial hypertension, plexiform lesions are associated with severe arterial obstruction and right ventricular failure. Exploring their structure and position is crucial for understanding the interplay between hemodynamics and vascular remodel ...
AMER PHYSIOLOGICAL SOC2021