Table 3. Concordance correlation coefficient (CCC).

Estimates of iodine quantities with the three segmentation methods toward injected iodine quantities.Average of three estimates for each segmentation method.

Concordance correlation coefficients (CCC) for estimated iodine quantities on DECT images toward injected quantities. To evaluate accuracy of the three segmentation methods, CCC are calculated considering averages of three estimates for each segmentation method. CCC are evaluated as moderate considering 8 sausages (including IX and X) whereas CCC are evaluated as substantial excluding sausages IX and X (6 sausages columns). 95% CI: 95% confidence interval.

	8 sausages		6 sausages (excluding IX and X)
	CCC	Significance, p	CCC	Significance, p
Manual Segmentation	0.9546	0.0002	0.9779	0.0007
Fixed Threshold	0.9497	0.0003	0.9733	0.0011
Semi-automatic Segmentation	0.9540	0.0002	0.9825	0.0005