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"Direct" measurement of delocalized molecular excitonic wave functions through excitonic and vibronic photon imaging. [PDF]
Luo Y +9 more
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Coronary Wave Enhancement for Robust Wave Intensity Analysis
2018 International Conference on Applied Electromagnetics, Signal Processing and Communication (AESPC), 2018Analysis of coronary wave intensity is a hemodynamic index that can exhibit the arterial system and working condition of heart. Apart from electrocardiogram (ECG) research it is a new direction of cardiac disease analysis in non-invasive way.
Swapnil Mishra +2 more
semanticscholar +2 more sources
Snapshots of Hemodynamics, 2018
Originally Wave Intensity was defined as the product of differences in pressure, dP=P(t + Δt)–P(t) and velocity, dv = v(t + Δt)–v(t), as dP·dv. This implies that their product, dP·dv is in Watt·m−2, and depends on the sampling time, Δt, which makes quantitative comparison between studies, when Δt is not reported, difficult.
N. Westerhof +3 more
semanticscholar +2 more sources
Originally Wave Intensity was defined as the product of differences in pressure, dP=P(t + Δt)–P(t) and velocity, dv = v(t + Δt)–v(t), as dP·dv. This implies that their product, dP·dv is in Watt·m−2, and depends on the sampling time, Δt, which makes quantitative comparison between studies, when Δt is not reported, difficult.
N. Westerhof +3 more
semanticscholar +2 more sources
An introduction to wave intensity analysis
Medical & Biological Engineering & Computing, 2009Wave intensity analysis applies methods first used to study gas dynamics to cardiovascular haemodynamics. It is based on the method of characteristics solution of the 1-D equations derived from the conservation of mass and momentum in elastic vessels.
Kim H Parker
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International Journal of Cardiology, 2020
BACKGROUND Elevated systemic afterload in patients with Fontan circulation may lead to impaired single ventricular function. Wave intensity analysis (WIA) enables evaluation of compression and expansion waves traveling through vasculature.
M. Schäfer +13 more
semanticscholar +3 more sources
BACKGROUND Elevated systemic afterload in patients with Fontan circulation may lead to impaired single ventricular function. Wave intensity analysis (WIA) enables evaluation of compression and expansion waves traveling through vasculature.
M. Schäfer +13 more
semanticscholar +3 more sources
Critical Care Medicine, 2020
Objectives: Milrinone is an inodilator widely used in the postoperative management of children undergoing cardiac surgery. The literature supporting its inotropic effect is sparse.
S. Rahiman +8 more
semanticscholar +1 more source
Objectives: Milrinone is an inodilator widely used in the postoperative management of children undergoing cardiac surgery. The literature supporting its inotropic effect is sparse.
S. Rahiman +8 more
semanticscholar +1 more source
“Wave” as defined by wave intensity analysis
Medical & Biological Engineering & Computing, 2008The propagation of waves in the arteries is generally described using Fourier analysis in terms of periodic wavetrains formed by the superposition of a mean value and sinusoidal waves at the fundamental frequency (defined by the heart rate) and its harmonics.
Jiun-Jr, Wang +3 more
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Wave intensity wall analysis: a novel noninvasive method to measure wave intensity
Heart and Vessels, 2009Wave intensity analysis is a concept providing information about the interaction of the heart and the vascular system. Originally, the technique was invasive. Since then new noninvasive methods have been developed. A recently developed ultrasound technique to estimate tissue motion and deformation is speckle-tracking echocardiography.
Matilda, Larsson +6 more
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Brief commentary on coronary wave-intensity analysis
Journal of Applied Physiology, 2000coronary pressure-flow relations have long interested physiologists but are so complex that even today they have still not been completely unraveled. Early investigators like Rebatel in 1872 (Ref.
J I, Hoffman, W M, Chilian
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