Coronary angiography alone cannot accurately identify the haemodynamic impact of a
coronary artery stenosis. Current international guidelines for myocardial revascularization …

Background Quantitative flow ratio (QFR), a novel functional angiography technique,
computes fractional flow reserve (FFR) without pressure wires or adenosine. We …

BACKGROUND Based on coronary angiography and mean aortic pressure, a specially
designed computational flow dynamics (CFD) method is proposed to determine contrast …

Fractional flow reserve (FFR) assessment provides anatomical and physiological
information that is often used to tailor treatment strategies in coronary artery disease. Whilst …

Background: Adenosine is a coronary hyperemic agent used to measure invasive fractional
flow reserve (FFR) of intermediate severity coronary stenosis. In this investigation, we …

Background Measurement of fractional flow reserve (FFR) by intravenous infusion or
intracoronary injection of adenosine is the reference method to determine the hemodynamic …

2 Albaghdadi and Jaffer QFR, FFR, and Coronary Artery Stenosis characteristic curve and
higher standard deviation noted in WIFI II compared with their pilot study on QFR14 may be …

Background: The significance of a coronary stenosis can be determined by measuring the
fractional flow reserve (FFR) during invasive coronary angiography. Recently, novel …

Background: Intravenous infusion of adenosine is considered standard practice for fractional
flow reserve (FFR) assessment but is associated with adverse side-effects and is time …

Background The recommended dosage of intracoronary adenosine in fractional flow reserve
(FFR) assessment is controversial. High-dose adenosine may overcome the biological …