RT Journal Article SR Electronic A1 Rizzo, Toni T1 Fractional Flow Reserve JF MD Conference Express YR 2012 FD SAGE Publications VO 12 IS 12 SP 14 OP 15 DO 10.1177/155989771212006 UL http://mdc.sagepub.com/content/12/12/14.abstract AB The use of fractional flow reserve (FFR) has helped interventional cardiologists gain a better understanding of coronary artery obstruction. This article discusses the physiology of FFR and the United Kingdom experience, as well as the Trinidad and Tobago experience with FFR.