Table 2.

The performance of the AI model for each validation according to the annotation type AI, artificial intelligence; DSC, Dice similarity coefficient; BD, bile duct; AW, anterior wall; SD, standard deviation.

Validation set	DSC	Precision	Recall
1st
BD	0.758	0.735	0.782
AW	0.513	0.482	0.579
2nd
BD	0.728	0.737	0.719
AW	0.424	0.355	0.525
3rd
BD	0.726	0.734	0.719
AW	0.397	0.302	0.575
4th
BD	0.723	0.677	0.777
AW	0.339	0.282	0.423
5th
BD	0.706	0.683	0.731
AW	0.475	0.409	0.568
Mean (SD)
BD	0.728 (0.01)	0.713 (0.2)	0.746 (0.02)
AW	0.429 (0.06)	0.366 (0.07)	0.528 (0.05)