Results 31 to 40 of about 2,011,937 (232)

Wave intensity analysis in the internal carotid artery of hypertensive subjects using phase-contrast MR angiography and preliminary assessment of the effect of vessel morphology on wave dynamics. [PDF]

open access: yesPhysiol Meas, 2018
Objective: Hypertension is associated with reduced cerebral blood flow, but it is not known how this impacts on wave dynamics or potentially relates to arterial morphology. Given the location of the internal carotid artery (ICA) and risks associated with
Neumann S   +7 more
europepmc   +2 more sources

Use of wave intensity analysis during peripheral revascularisation: Lessons from cases study

open access: hybridArtery Research, 2013
Background: Wave propagation in arteries can be characterized by the wave-intensity approach. This has particularly well been studied in healthy ascending aortas, carotid, brachial and coronary arteries.
Valérie Lacroix   +4 more
doaj   +2 more sources

Impact of varying diastolic pressure fitting technique for the reservoir-wave model on wave intensity analysis. [PDF]

open access: yesProc Inst Mech Eng H, 2020
The reservoir-wave model assumes that the measured arterial pressure is made of two components: reservoir and excess. The effect of the reservoir volume should be excluded to quantify the effects of forward and backward traveling waves on blood pressure.
Pomella N   +3 more
europepmc   +7 more sources

Noninvasive assessment of the common carotid artery hemodynamics with increasing exercise work rate using wave intensity analysis.

open access: yesAm J Physiol Heart Circ Physiol, 2018
Noninvasively determined local wave speed (c) and wave intensity (WI) parameters provide insights into arterial stiffness and cardiac-vascular interactions in response to physiological perturbations.
Pomella N   +5 more
europepmc   +2 more sources

Beat-to-beat coronary wave intensity analysis: implications of backward waves originating from microvascular [PDF]

open access: yesFrontiers in Cardiovascular Medicine
IntroductionWhile coronary wave intensity analysis (cWIA) offers a promising way to assess myocardial and microvascular function by decomposing microvascular-originated backward waves, its clinical utility is currently limited by complex data acquisition
Xinzhou Xie   +13 more
doaj   +2 more sources

Wave intensity analysis in air-filled flexible vessels.

open access: yesJournal of Biomechanics, 2015
Wave intensity analysis (WIA) is an analytical technique generally used to investigate the propagation of waves in the cardiovascular system. Despite its increasing usage in the cardiovascular system, to our knowledge WIA has never been applied to the ...
F. Clavica, K. Parker, A. Khir
semanticscholar   +5 more sources

Utility of Cardiovascular Magnetic Resonance-Derived Wave Intensity Analysis As a Marker of Ventricular Function in Children with Heart Failure and Normal Ejection Fraction. [PDF]

open access: yesFront Pediatr, 2017
Objective This study sought to explore the diagnostic insight of cardiovascular magnetic resonance (CMR)-derived wave intensity analysis to better study systolic dysfunction in young patients with chronic diastolic dysfunction and preserved ejection ...
Ntsinjana HN   +8 more
europepmc   +2 more sources

Novel wave intensity analysis of arterial pulse wave propagation accounting for peripheral reflections [PDF]

open access: yesInternational Journal for Numerical Methods in Biomedical Engineering, 2013
We present a novel analysis of arterial pulse wave propagation that combines traditional wave intensity analysis with identification of Windkessel pressures to account for the effect on the pressure waveform of peripheral wave reflections.
J. Alastruey   +2 more
semanticscholar   +7 more sources

In silico coronary wave intensity analysis: application of an integrated one-dimensional and poromechanical model of cardiac perfusion. [PDF]

open access: yesBiomech Model Mechanobiol, 2016
Coronary wave intensity analysis (cWIA) is a diagnostic technique based on invasive measurement of coronary pressure and velocity waveforms. The theory of WIA allows the forward- and backward-propagating coronary waves to be separated and attributed to ...
Lee J   +4 more
europepmc   +2 more sources

Wave intensity analysis in the human coronary circulation in health and disease. [PDF]

open access: yesCurr Cardiol Rev, 2014
Coronary artery hemodynamics are very different to that of the systemic arteries; unlike the systemic circulation, in the coronary circulation pressure is generated from both the proximal and distal end of the artery – due to the effect of contraction ...
Sen S, Petraco R, Mayet J, Davies J.
europepmc   +2 more sources

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