Results 61 to 70 of about 152,141 (297)
The Multi-center Evaluation of the Accuracy of the Contrast MEdium INduced Pd/Pa RaTiO in Predicting FFR (MEMENTO-FFR) Study. [PDF]
, 2016 AIMS: Adenosine administration is needed for the achievement of maximal hyperaemia fractional flow reserve (FFR) assessment. The objective was to test the accuracy of Pd/Pa ratio registered during submaximal hyperaemia induced by non-ionic contrast ...
Amabile, N +5 more
core +1 more source
Atwood ratio dependence of Richtmyer-Meshkov flows under reshock conditions using large-eddy simulations [PDF]
, 2011 We study the shock-driven turbulent mixing that occurs when a perturbed planar density interface is impacted by a planar shock wave of moderate strength and subsequently reshocked.
Hill, D. J. +3 more
core +1 more source
Instantaneous Wave-Free Ratio: Novel Adenosine-Free Method to Assess Intracoronary Physiology
Turk Kardiyoloji Dernegi Arsivi-Archives of the Turkish Society of Cardiology, 2023 Fractional flow reserve assessment was accepted as a crucial strategy in stable patients undergoing coronary angiography without prior noninvasive evaluation in the presence of borderline lesions and in patients with multivessel coronary artery disease.
Murat, Çimci +5 more
openaire +3 more sources
Journal of the Saudi Heart Association, 2018 Introduction: Invasive physiologic variables such as fractional flow reserve (FFR) and instantaneous wave-free ratio (iFR) are used in clinical practice to assess the functional significance of epicardial coronary stenosis and guide the management ...
Dikra Al-Dobai +5 more
doaj +1 more source
Optimization of blasting parameters in open cast quarries of El Hassa-Bouira (Northern Algeria) [PDF]
, 2019 In recent years, Algeria has known a rapid growth in the construction projects, such as: buildings, roads, and infrastructure, which increased the demand for aggregates production in quarries.
Benselhoub, Aissa +2 more
core +1 more source
Does the Instantaneous Wave-Free Ratio Approximate the Fractional Flow Reserve?
Journal of the American College of Cardiology, 2013 This study sought to examine the clinical performance of and theoretical basis for the instantaneous wave-free ratio (iFR) approximation to the fractional flow reserve (FFR).Recent work has proposed iFR as a vasodilation-free alternative to FFR for making mechanical revascularization decisions.
Johnson, Nils P. +15 more
openaire +6 more sources
Instantaneous Wave-Free Ratio or Fractional Flow Reserve Without Hyperemia
Journal of the American College of Cardiology, 2012 No abstract.
Pijls, Nico H.J. +9 more
openaire +3 more sources
Effects of channel cross-sectional geometry on long wave generation and propagation [PDF]
, 1997 Joint theoretical and experimental studies are carried out to investigate the effects of channel cross-sectional geometry on long wave generation and propagation in uniform shallow water channels. The existing channel Boussinesq and channel KdV equations
Teng, Michelle H., Wu, Theodore Y.
core +1 more source
The impact of tissue Doppler index E/e′ ratio on instantaneous wave-free ratio
Journal of Cardiology, 2018 The instantaneous wave-free ratio (iFR) is a vasodilator-free, invasive pressure wire index of the functional severity of coronary stenosis and is calculated under resting conditions. In a recent study, iFR was found to be more closely linked to coronary flow reserve (CFR) than fractional flow reserve (FFR).
Hiroyuki, Arashi +9 more
openaire +2 more sources
Российский кардиологический журнал, 2023 Aim. To conduct a systematic review and meta-analysis to compare clinical outcomes in patients with coronary artery disease (CAD) undergoing percutaneous coronary intervention (PCI) using conventional coronary angiography (CAG) or fractional flow reserve
E. Z. Golukhova +5 more
doaj +1 more source