Table 3. Inter-modality agreement (reader 1 on dual energy CT vs. reader 3 on SPECT-CT).

Agreement type	Percent agreement			Cohen’s kappa
	Estimate	95% CI		Estimate	95% CI
Segment-level	34% (103/304)	(25%, 44%)		0.25	(0.14, 0.37)
Lobe-level	33% (31/94)	(21%, 46%)		0.22	(0.07, 0.37)
Patient-level	53% (10/19)	(29%, 75%)		0.07	(-0.28, 0.42)