Fig. 3.

FFR_CT-guided versus coronary CTA-guided referral to ICA in suspected coronary stenosis. Invasive findings and treatment. The diagram illustrates findings by ICA and treatment depending on coronary CTA-guided or FFR_CT-guided referral to ICA. The number of patients, n, referred directly to ICA according to stenosis severity by coronary CTA were: 30–69%, 38; 70–89%, 84. The corresponding numbers for patients referred based on FFR_CT-testing were: 30–69%, 64; 70–89%, 36. Differences in findings by ICA/revascularization rates between referral practices are given as odds ratios (95% confidence intervals). Abbreviations ICA = invasive coronary angiography; coronary CTA = coronary computerized tomography angiography; FFR_CT=coronary CTA derived fractional flow reserve