Table 3:

Differences in Size Estimates Between Each Imaging Modality and the Resected Pathological Specimen

		CT vs Pathology	MRI vs Pathology	EUS vs Pathology
Overall	Mean Difference (SD) (cm)	0.33 (1.00)	0.27 (0.95)	−0.05 (0.88)
	95% Limit of agreement	−1.63 to +2.29	−1.59 to +2.12	−1.78 to +1.69
	ICC	0.787	0.802	0.735
	95% Confidence Interval	0.653 to 0.871	0.681 to 0.879	0.588 to 0.835
	Subgroup Bland-Altman Analysis between Imaging Modality and Pathology for IPMN <3 cm
		CT vs Pathology	MRI vs Pathology	EUS vs Pathology
<3 cm	Mean Difference (SD) (cm)	0.18 (0.78)	0.30 (0.82)	0.19 (0.82)
	95% Limit of agreement	−1.35 to +1.71	−1.32 to +1.91	−1.42 to +1.80
	ICC	0.465	0.465	0.457
	95% Confidence Interval	0.151 to 0.695	0.156 to 0.694	0.142 to 0.690
	Subgroup Bland-Altman Analysis between Imaging Modality and Pathology for IPMN ≥3 cm
		CT vs Pathology	MRI vs Pathology	EUS vs Pathology
≥3 cm	Mean Difference (SD) (cm)	0.51 (1.22)	0.23 (1.10)	−0.35 (0.84)
	95% Limit of agreement	−1.88 to +2.90	−1.96 to +2.39	−2.08 to +1.38
	ICC	0.731	0.799	0.686
	95% Confidence Interval	0.469 to 0.874	0.601 to 0.906	0.403 to 0.848

Abbreviations: ICC=intraclass correlation coefficient; SD=standard deviation; CT=computed tomography; MRI=magnetic resonance imaging; EUS=endoscopic ultrasound