Figure 1.

Flow Chart Outlining Patient Selection

Patients were included from the DEFINE-FLAIR trial. This analysis was focused on patients who had lesions within their LAD, and who then went on to be deferred on the basis of intracoronary physiology (either iFR or FFR). The total number of patients included in the LAD deferred analysis was 872. DEFINE-FLAIR = Functional Lesion Assessment of Intermediate Stenosis to Guide Revascularisation; FFR = fractional flow reserve; iFR = instantaneous wave-free ratio; LAD = left anterior descending.