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. 2019 Feb 6;12(2):e007577. doi: 10.1161/CIRCINTERVENTIONS.118.007577

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© 2019 The Authors.

Circulation: Cardiovascular Interventions is published on behalf of the American Heart Association, Inc., by Wolters Kluwer Health, Inc. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution, and reproduction in any medium, provided that the original work is properly cited.

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Figure 5. — Categorical scatter plot comparing errors in estimating true stenosis significance with different methods. Categorical scatter plot comparing errors in estimating true stenosis significance (mean error±SD) with invasive FFR_pullback vs conventional FFR by computed tomography (FFR_CT) vs results from FFR_CT with the percutaneous coronary intervention (PCI) planning tool (FFR_CT-P). Also shown are percentage errors for each physiological tool as a proportion of the true FFR change, derived following isolation of a stenosis by PCI of an accompanying tandem stenosis. FFR indicates fractional flow reserve.