Results 1 to 10 of about 24,156,865 (214)

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, Kiril Delchev, Estefania De Garate, Mark C. K. Hamilton, Massimo Caputo, Chiara Bucciarelli-Ducci, Giovanni Biglino   +6 more
doaj   +2 more sources

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, Nadine Francis, Peter P. Selwanos, Magdi H. Yacoub, Magdi H. Yacoub, Magdi H. Yacoub, Magdi H. Yacoub, Magdi H. Yacoub, Kim H. Parker   +8 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, Spencer J. Sherwin, Meng-Xing Tang, Peter D. Weinberg   +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, Maria Victoria Ordonez, Sandra Neumann, Massimo Caputo, Massimo Caputo, Stephanie Curtis, Giovanni Biglino, Giovanni Biglino, Giovanni Biglino   +8 more
doaj   +2 more sources

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, Jonathan Lee, Patrick Segers   +2 more
doaj   +2 more sources

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 Disease
Background 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, Gaurav Gulati, Kay Everett, Katherine Kearney, Edmund M. Lau, Daniel Burkhoff, Audrey Adji, Navin K. Kapur   +7 more
doaj   +2 more sources

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, Jan Baan, Jan J. Piek, Maria Siebes   +3 more
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Pulmonary artery wave intensity analysis in pulmonary hypertension associated with heart failure and reduced left ventricular ejection fraction [PDF]

Pulmonary Circulation
Wave intensity analysis (WIA) uses simultaneous changes in pressure and flow velocity to determine wave energy, type, and timing of traveling waves in the circulation.
Ivan H. W. Yim, Kim H. Parker, Nigel E. Drury, Hoong Sern Lim   +3 more
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Pulmonary wave intensity analysis to assess ventriculo-arterial interactions in cardiogenic shock [PDF]

JHLT Open
Background: Pulmonary wave intensity analysis (WIA) uses pressure and velocity measurements to characterize the type, direction, and timing of energy waves within the pulmonary circulation.
Sara L. Hungerford, MD, PhD, Kay D. Everett, MD, PhD, Edmund Lau, MD, PhD, Daniel Burkhoff, MD, PhD, Navin K. Kapur, MD, Gaurav Gulati, MD, PhD   +5 more
doaj   +2 more sources

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

Frontiers 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, Peng Han, Peng Han, Tiantong Yu, Tiantong Yu, Zixi Huang, Heqiang Lin, Songyun Xie, Bohui Zhang, Shuai Zhao, Che Wang, Chengxiang Li, Yan Chen, Kun Lian   +13 more
doaj   +2 more sources