Table 4. The sensitivity analysis of atrous CNN setting.

Dilation rate	1	2	3	4	5	6
Dice	0.5976	0.6105	0.6251	0.6248	0.6296	0.6175
Acc	0.9888	0.9894	0.9928	0.9912	0.9907	0.9910
Pre	0.5193	0.5423	0.6359	0.6323	0.5955	0.6186
Spec	0.9922	0.9929	0.9960	0.9957	0.9946	0.9954

Notes.

The best performance results are highlighted in bold. The second-best performance of MCV-UNet is highlighed with an underline.