Table 1. Statistical evaluation of individual participants in blinded study evaluating MRI and endoscopy.

		Kappa
Rater	Agreement with Histology	K	95% CI	Significance	Intra-Rater Variability(ICC with 95% CI)
MRI
1	89.47% (17/19)	0.791	0.524–1.00	<.001	0.578 (0.315–0.790)
2	78.95% (15/19)	0.553	0.176–0.930	0.013	0.594 (0.335–0.799)
3	84.21% (16/19)	0.671	0.331–1.00	.003	0.708 (0.487–0.863)
4	94.74% (18/19)	0.890	0.682–1.0	<.001	0.312 (0.032–0.609)
5	78.95% (15/19)	0.568	0.193–0.941	0.013	0.785 (0.603–0.902)
Endoscopy
1	52.63% (10/19)	.045	−0.402–0.492	0.845	0.873 (0.752–0.944)
2	47.37% (9/19)	−0.044*	−0.484–0.396	0.845	0.667 (0.429–0.841)
3	57.89% (11/19)	0.165	−0.268–0.598	0.463	0.791 (0.613–0.905)
4	42.11% (8/19)	−0.01*	−0.422–0.401	0.960	0.781 (0.597–0.901)
5	52.63% (10/19)	−0.01*	−0.422–0.401	0.960	0.676 (0.442–0.846)

*Negative values indicate less than chance agreement.