Results 31 to 40 of about 17,442 (284)

The haemodynamic effects of collateral donation to a chronic total occlusion : implications for patient management [PDF]

, 2015
Physiological lesion assessment in the form of Fractional Flow Reserve (FFR) is now well established for the purpose of guiding multi-vessel revascularization.
Hoye, Angela, Ladwiniec, Andrew
core   +1 more source

Microvascular Resistance Reserve for Assessment of Coronary Microvascular Function: JACC Technology Corner [PDF]

, 2021
The need for a quantitative and operator-independent assessment of coronary microvascular function is increasingly recognized. We propose the theoretical framework of microvascular resistance reserve (MRR) as an index specific for the microvasculature ...
Barbato E., Bartunek J., Candreva A., Collet C., De Bruyne B., De Vos A., El Farissi M., Fearon W. F., Fournier S., Gallinoro E., Keulards D. C. J., Muller O., Pijls N. H. J., Sonck J., Tonino P. A. L., van't Veer M., Vanderheyden M., Wyffels E.   +17 more
core   +1 more source

Fractional Flow Reserve or Coronary Flow Reserve for the Assessment of Myocardial Perfusion [PDF]

Current Cardiology Reports, 2018
Accumulating evidence exists for the value of coronary physiology for clinical decision-making in ischemic heart disease (IHD). The most frequently used pressure-derived index to assess stenosis severity, the fractional flow reserve (FFR), has long been considered the gold standard for this purpose, despite the fact that the FFR assesses solely ...
Tim P. van de Hoef, Jan J. Piek, Valérie E. Stegehuis, Gilbert W. M. Wijntjens   +3 more
openaire   +3 more sources

Fractional flow reserve versus angiography in guiding management to optimize outcomes in non–ST-elevation myocardial infarction (FAMOUS-NSTEMI): rationale and design of a randomized controlled clinical trial [PDF]

, 2013
<p>Background: In patients with acute non–ST-elevation myocardial infarction (NSTEMI), coronary arteriography is usually recommended; but visual interpretation of the angiogram is subjective.
Balachandran, Kanarath P., Berry, Colin, Briggs, Andrew H., Curzen, Nick P., Das, Raj, Ford, Ian, Henderson, Robert A., Junejo, Shahid, Layland, Jamie, Oldroyd, Keith G., Sood, Arvind   +10 more
core   +1 more source

Effect of the ratio of vessel-specific volume to fractional myocardial mass on fractional flow reserve

Experimental Biology and Medicine, 2021
This study aimed to examine whether the ratio of vessel-specific coronary arterial lumen volume to the fraction of myocardial mass (VR/MR) affects myocardial ischemia. We proposed a calculation method for VR/MR, and compared the ratio of total epicardial coronary arterial lumen volume to left ventricular myocardial mass (V/M) with VR/MR in predicting ...
Jincheng Liu, Bao Li, Junling Ma, Xue Wang, Liyuan Zhang, Boyan Mao, Youjun Liu   +6 more
openaire   +2 more sources

Collateral donor artery physiology and the influence of a chronic total occlusion on fractional flow reserve [PDF]

, 2015
Background— The presence of a concomitant chronic total coronary occlusion (CTO) and a large collateral contribution might alter the fractional flow reserve (FFR) of an interrogated vessel, rendering the FFR unreliable at predicting ischemia should the ...
Alahmar, A., Alahmar, Albert, Alamgir, F., Alamgir, Farquad, Cunnington, Michael S., Davies, Justin E., Hoye, Angela, Ladwiniec, A., Ladwiniec, Andrew, Mather, Adam N., Nijjer, Sukhjinder S., Oliver, Richard M., Rossington, J., Rossington, Jennifer, Thackray, S., Thackray, Simon   +15 more
core   +1 more source

Diabetes does not impact the diagnostic performance of contrast-based fractional flow reserve: insights from the CONTRAST study [PDF]

, 2017
Background: Adenosine-free coronary pressure wire metrics have been proposed to test the functional significance of coronary artery lesions, but it is unexplored whether their diagnostic performance might be altered in patients with diabetes. Methods:
Adjedj, Julien, Barbato, Emanuele, Esposito, Giovanni, Fearon, William, Ferrone, Marco, Gargiulo, Giuseppe, Hennigan, Barry, Jeremias, Allen, Johnson, Nils, Matsumura, Mitsuaki, On behalf of the CONTRST Study Investigators, Stabile, Eugenio, Trimarco, Bruno, Zimmermann, Frederik   +13 more
core   +2 more sources

Safety of the deferral of coronary revascularization on the basis of instantaneous wave-free ratio and fractional flow reserve measurements in stable coronary artery disease and acute coronary syndromes [PDF]

, 2018
OBJECTIVES: The aim of this study was to investigate the clinical outcomes of patients deferred from coronary revascularization on the basis of instantaneous wave-free ratio (iFR) or fractional flow reserve (FFR) measurements in stable angina pectoris ...
Escaned, Javier, et al,, Singh, Jasvindar   +2 more
core   +5 more sources

(F)Utility of invasive haemodynamic measurements to guide percutaneous intervention in chronic coronary artery disease

Swiss Medical Weekly, 2015
Percutaneous coronary intervention (PCI) in chronic stable coronary artery disease has not been shown to reduce the incidence of myocardial infarction or death.
Christian Seiler
doaj   +1 more source

Meta-analysis of death and myocardial infarction in the DEFINE-FLAIR and iFR-SWEDEHEART trials: a hypothesis generating note of caution [PDF]

, 2017
In patients with coronary heart disease, revascularization can improve symptoms and in certain high-risk subgroups may improve prognosis. Coronary angiography provides anatomical information and the physiological significance of a stenosis can be ...
Berry, Colin, McClure, John D., Oldroyd, Keith G.   +2 more
core   +1 more source