TABLE 3.

Consistency between nnU-Net model and physicians in evaluating carotid artery stenosis in training and validation sets.

No. (%)	Assessed by nnU-Net model			Kappa coefficient	p value
		Non-stenosis	Stenosis
Training set (N = 70)
Assessed by physicians	Non-stenosis	48 (68.6)	1 (1.4)	0.860	<0.001
	Stenosis	3 (4.3)	18 (25.7)
Validation set (N = 23)
Assessed by physicians	Non-stenosis	16 (69.6)	1 (4.3)	0.893	<0.001
	Stenosis	0 (0.0)	6 (26.1)