Fractional Flow Reserve to Determine the Appropriateness of Angioplasty in Moderate Coronary Stenosis

BACKGROUND: PTCA of a coronary stenosis without documented ischemia at noninvasive stress testing is often performed, but its benefit is unproven. Coronary pressure-derived fractional flow reserve (FFR) is an invasive index of stenosis severity that is a reliable substitute for noninvasive stress te... View More