Velocity-pressure loops can estimate intrinsic and pharmacologically induced changes in cardiac afterload during non-cardiac surgery. An observational study
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Clinical Monitoring and Computing"
DOI: 10.1007/s10877-021-00686-0
Abstract: Continuous measurement of aortic pressure and aortic flow velocity signals in the operating theatre allows us to draw velocity-pressure (Vel-Pre) loops. The global afterload angle (GALA), derived from the Vel-Pre loops, has been linked to… read more here.
Keywords: cardiac afterload; velocity pressure; gala; pressure ... See more keywords
Influence of noninvasive central blood pressure devices for afterload monitoring with aortic velocity-pressure Loop in anesthetized patients
Sign Up to like & getrecommendations! Published in 2020 at "Blood Pressure Monitoring"
DOI: 10.1097/mbp.0000000000000445
Abstract: Background Global afterload angle (GALA) is a parameter derived from velocity-pressure loop (VP Loop), for continuous assessment of cardiac afterload in the operating room. It has been validated with invasive measure of central pressure. The… read more here.
Keywords: pressure loop; blood pressure; central pressure; pressure ... See more keywords
Hidden fluid mechanics: Learning velocity and pressure fields from flow visualizations
Sign Up to like & getrecommendations! Published in 2020 at "Science"
DOI: 10.1126/science.aaw4741
Abstract: Machine-learning fluid flow Quantifying fluid flow is relevant to disciplines ranging from geophysics to medicine. Flow can be experimentally visualized using, for example, smoke or contrast agents, but extracting velocity and pressure fields from this… read more here.
Keywords: pressure fields; flow; velocity pressure; mechanics ... See more keywords
Consistent Velocity-Pressure Coupling for Second-Order L 2 -Penalty and Direct-Forcing Methods
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DOI: 10.3390/fluidsxx010005
Abstract: The present work studies the interactions between fictitious-domain methods on structured grids and velocity-pressure coupling for the resolution of the Navier-Stokes equations. The pressure-correction approaches are widely used in this context but the corrector step… read more here.
Keywords: penalty; pressure coupling; order penalty; pressure ... See more keywords