Reply: Is the instantaneous wave-free ratio equivalent to fractional flow reserve?
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BACKGROUND Small drifts in intracoronary pressure measurements (±2 mm Hg) can affect stenosis categorization using pressure indices. This has not previously been assessed for fractional flow reserve (FFR), instantaneous wave-free ratio (iFR), and whole-cycle distal pressure/proximal pressure (Pd/Pa) indices. METHODS AND RESULTS Four hundred forty-seven stenoses were assessed with FFR, iFR, an...
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ورودعنوان ژورنال:
- Journal of the American College of Cardiology
دوره 62 10 شماره
صفحات -
تاریخ انتشار 2013