*With FFR clinicians can accurately assess blood flow reserve in the coronary artery. Through a high-tech, miniaturized pressure sensor mounted on a guidewire that is inserted into the coronary artery, it is possible to identify where blood flow is reduced and ultimately determine the artery location to guide treatment strategy for the PCI procedure.
**iFR technology acts in a similar manner to FFR – but instead measures blood flow without needing a second measurement in hyperemia induced by an accompanying drug.
***IVUS is a catheter based system that provides a precise anatomical perspective from inside the coronary artery, with a 360° view and detailed look at the nature of plaques that build up on the artery wall that can lead to vessel blockage.
 2015 Heart Disease and Stroke Statistics Update, American Heart Association, Centers for Disease Control and Prevention, the National Institutes of Health, et al.
 National Audit of Percutaneous Coronary Interventions. Annual Public Report. January 2013 – December 2013. National Institute for Cardiovascular Outcomes Research (NICOR).
 Costa et al. Impact of Stent Deployment Procedural Factors on Long-term Effectiveness and Safety of Sirolimus-Eluting Stents (Final results of the Multicenter Prospective STLLR Trial). Am J Cardiol 2008 Jun 15; 101(12):1704-11.