Objectives: This work compares the diagnostic performance of adenosine-free coronary
pressure wire indices based on lesion location. Background: Several adenosine-free …

Background—The assessment of functional coronary lesion severity using intracoronary
physiological parameters such as coronary flow velocity reserve and the more widely used …

Background The role of resting pressure parameters, ie instantaneous wave-free ratio (iFR),
and resting distal coronary pressure/aortic pressure (Pd/Pa) in assessing functionally …

Background Quantitative flow ratio (QFR) is a novel, adenosine-free method for functional
coronary lesion interrogation, which is based on 3-dimensional quantitative coronary …

Objectives: This study sought to determine if adenosine administration is required for the
pressure-only assessment of coronary stenoses. Background: The instantaneous wave-free …

Background—Small drifts in intracoronary pressure measurements (±2 mm Hg) can affect
stenosis categorization using pressure indices. This has not previously been assessed for …

Objective To investigate the relationship between resting distal coronary pressure to aortic
pressure ratio (Pd/Pa) and fractional flow reserve (FFR) obtained during maximal …

Objectives: This study compared the diagnostic performance with adenosine-derived
fractional flow reserve (FFR)≤ 0.8 of contrast-based FFR (cFFR), resting distal pressure …

Aims Pressure-wire assessment of coronary stenosis is considered the invasive reference
standard for detection of ischaemia-generating lesions. Recently, methods to estimate the …

Background: Recently, 2 randomized controlled trials showed that the instantaneous wave-
free ratio (iFR), a resting coronary physiological index, is noninferior to fractional flow …