Table 2.

A. Concordance between baseline perfusion cardiovascular magnetic resonance (CMR) and serial fractional flow reserve (FFR) measurements (at an ischemic threshold of ≤ 0.80); B. Concordance between baseline perfusion CMR and serial FFR measurements (at an ischemic threshold of ≤ 0.75). The results were not affected by reassignment of coronary territories following blinded angiographic review.

A	FFR results (threshold of ≤ 0.80)
	Prior to RCA CTO PCI		4 months following RCA CTO PCI
CMR result	LAD FFR negative	LAD FFR positive	LAD FFR negative	LAD FFR positive
Negative for LAD ischemia	9	9	13	5
Positive for LAD ischemia	1	7	1	7
B	FFR results (threshold of ≤ 0.75)
	Prior to RCA CTO PCI		4 months following RCA CTO PCI
CMR result	LAD FFR negative	LAD FFR positive	LAD FFR negative	LAD FFR positive
Negative for LAD ischemia	15	3	15	3
Positive for LAD ischemia	1	7	2	6

RCA — right coronary artery; CTO — chronic total occlusion; PCI — percutaneous coronary intervention; LAD — left anterior descending artery