Results 11 to 20 of about 2,011,937 (232)

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 ...
Broyd CJ, Rigo F, Davies J.
europepmc   +7 more sources

Wave Intensity Analysis Provides Novel Insights Into Pulmonary Arterial Hypertension and Chronic Thromboembolic Pulmonary Hypertension. [PDF]

J Am Heart Assoc, 2017
Background In contrast to systemic hypertension, the significance of arterial waves in pulmonary hypertension (PH) is not well understood. We hypothesized that arterial wave energy and wave reflection are augmented in PH and that wave behavior differs ...
Su J, Manisty C, Parker KH, Simonsen U, Nielsen-Kudsk JE, Mellemkjaer S, Connolly S, Lim PB, Whinnett ZI, Malik IS, Watson G, Davies JE, Gibbs S, Hughes AD, Howard L.   +14 more
europepmc   +4 more sources

Wave intensity analysis with exercise identifies impairments in pulmonary hypertension. [PDF]

Am J Physiol Heart Circ Physiol
Lechuga CG, Raza F, Colebank MJ, Korcarz CE, Eickhoff JC, Chesler NC.   +5 more
europepmc   +5 more sources

Feasibility of cardiovascular magnetic resonance derived coronary wave intensity analysis. [PDF]

J Cardiovasc Magn Reson, 2016
BackgroundWave intensity analysis (WIA) of the coronary arteries allows description of the predominant mechanisms influencing coronary flow over the cardiac cycle.
Raphael CE, Keegan J, Parker KH, Simpson R, Collinson J, Vassiliou V, Wage R, Drivas P, Strain S, Cooper R, de Silva R, Stables RH, Di Mario C, Frenneaux M, Pennell DJ, Davies JE, Hughes AD, Firmin D, Prasad SK.   +18 more
europepmc   +10 more sources

Wave intensity analysis and its application to the coronary circulation. [PDF]

Glob Cardiol Sci Pract, 2017
Wave intensity analysis (WIA) is a technique developed from the field of gas dynamics that is now being applied to assess cardiovascular physiology. It allows quantification of the forces acting to alter flow and pressure within a fluid system, and as ...
Broyd CJ, Davies JE, Escaned JE, Hughes A, Parker K.   +4 more
europepmc   +4 more sources

Enhancing coronary Wave Intensity Analysis robustness by high order central finite differences

Artery Research, 2014
Background: Coronary Wave Intensity Analysis (cWIA) is a technique capable of separating the effects of proximal arterial haemodynamics from cardiac mechanics.
Simone Rivolo, Kaleab N. Asrress, Amedeo Chiribiri, Eva Sammut, Roman Wesolowski, Lars Ø. Bloch, Anne K. Grøndal, Jesper L. Hønge, Won Y. Kim, Michael Marber, Simon Redwood, Eike Nagel, Nicolas P. Smith, Jack Lee   +13 more
doaj   +3 more sources

Identification of capillary rarefaction using intracoronary wave intensity analysis with resultant prognostic implications for cardiac allograft patients. [PDF]

Eur Heart J, 2018
Broyd CJ, Hernández-Pérez F, Segovia J, Echavarría-Pinto M, Quirós-Carretero A, Salas C, Gonzalo N, Jiménez-Quevedo P, Nombela-Franco L, Salinas P, Núñez-Gil I, Del Trigo M, Goicolea J, Alonso-Pulpón L, Fernández-Ortiz A, Parker K, Hughes A, Mayet J, Davies J, Escaned J.   +19 more
europepmc   +4 more sources

Relationship between Pulmonary Regurgitation and Ventriculo-Arterial Interactions in Patients with Post-Early Repair of Tetralogy of Fallot: Insights from Wave-Intensity Analysis. [PDF]

J Clin Med, 2022
This study aimed to investigate the effect of pulmonary regurgitation (PR) on left ventricular ventriculo–arterial (VA) coupling in patients with repaired tetralogy of Fallot (ToF).
Arya N, Schievano S, Caputo M, Taylor AM, Biglino G.   +4 more
europepmc   +2 more sources

Novel magnetic resonance wave intensity analysis in pulmonary hypertension [PDF]

J Cardiovasc Magn Reson, 2014
Background In pulmonary arterial hypertension (PH), abnormal wave reflections play an important part in pathophysiology and can be assessed using wave intensity analysis (WIA).
Quail M, Knight D, Steeden J, Taylor A, Muthurangu V.   +4 more
europepmc   +4 more sources

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