The Use of Maximum Entropy to Enhance Wave Intensity Analysis: An Application to Coronary Arteries in Hypertrophic Obstructive Cardiomyopathy [PDF]
Frontiers in Cardiovascular Medicine, 2021 Background: Wave intensity analysis is useful for analyzing coronary hemodynamics. Much of its clinical application involves the identification of waves indicated by peaks in the wave intensity and relating their presence or absence to different ...
Nadine Francis +8 more
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Usefulness of Proximal Coronary Wave Speed for Wave Intensity Analysis in Diseased Coronary Vessels [PDF]
Frontiers in Cardiovascular Medicine, 2020 Background: Wave speed is needed to separate net wave intensity into forward and backward traveling components. However, wave speed in diseased coronary arteries cannot be assessed from hemodynamic measurements obtained distal to a stenosis.
Lorena Casadonte +3 more
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Feasibility of Wave Intensity Analysis from 4D Cardiovascular Magnetic Resonance Imaging Data [PDF]
Bioengineering, 2023 Congenital heart defects (CHD) introduce haemodynamic changes; e.g., bicuspid aortic valve (BAV) presents a turbulent helical flow, which activates aortic pathological processes.
Froso Sophocleous +6 more
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Noninvasive pulmonary artery wave intensity analysis in pulmonary hypertension
American Journal of Physiology - Heart and Circulatory Physiology, 2015 Pulmonary wave reflections are a potential hemodynamic biomarker for pulmonary hypertension (PH) and can be analyzed using wave intensity analysis (WIA). In this study we used pulmonary vessel area and flow obtained using cardiac magnetic resonance (CMR) to implement WIA noninvasively.
Michael A Quail +2 more
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Wave Intensity Analysis Combined With Machine Learning can Detect Impaired Stroke Volume in Simulations of Heart Failure [PDF]
Frontiers in Bioengineering and Biotechnology, 2021 Heart failure is treatable, but in the United Kingdom, the 1-, 5- and 10-year mortality rates are 24.1, 54.5 and 75.5%, respectively. The poor prognosis reflects, in part, the lack of specific, simple and affordable diagnostic techniques; the disease is ...
Ryan M. Reavette +3 more
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Feasibility of Wave Intensity Analysis in Patients With Conotruncal Anomalies Before and After Pregnancy: New Physiological Insights? [PDF]
Frontiers in Pediatrics, 2021 Background: Conotruncal anomalies (CTA) are associated with ongoing dilation of the aortic root, as well as increased aortic stiffness, which may relate to intrinsic properties of the aorta.
Maria Victoria Ordonez +8 more
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Mechanism of pulsus bisferiens in thoracoabdominal thoracic aneurysms: Insights from wave intensity analysis [PDF]
The Journal of Clinical Hypertension, 2021 Aortic pulsatile hemodynamics are important in various clinical conditions. Whereas the importance of wave reflections of the closed type in pulsatile hemodynamics has been extensively studied, less is known about the impact of reflections of the open ...
Julio A. Chirinos +2 more
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Assessment of Ventriculo‐Arterial Interactions in Early and Undifferentiated Pulmonary Hypertension Using Wave Intensity Analysis [PDF]
Journal of the American Heart Association: Cardiovascular and Cerebrovascular DiseaseBackground Pulmonary wave intensity analysis uses pressure and velocity data to assess the intensity, direction, type, and timing of waves. Its application in early and undifferentiated pulmonary hypertension (PH) to characterize right ventricular (RV ...
Sara Louise Hungerford +7 more
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Clinical usefulness of wave intensity analysis [PDF]
Medical and Biological Engineering and Computing, 2008 Wave intensity (WI) is a hemodynamic index, which can evaluate the working condition of the heart interacting with the arterial system. It can be defined at any site in the circulatory system and provides a great deal of information. However, we need simultaneous measurements of blood pressure and velocity to obtain wave intensity, which has limited ...
Motoaki Sugawara +2 more
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Non-invasive coronary wave intensity analysis. [PDF]
Int J Cardiovasc Imaging, 2017 Wave intensity analysis is calculated from simultaneously acquired measures of pressure and flow. Its mathematical computation produces a profile that provides quantitative information on the energy exchange driving blood flow acceleration and deceleration. Within the coronary circulation it has proven most useful in describing the wave that originates
Broyd CJ, Rigo F, Davies J.
europepmc +5 more sources