Table 7.

Paired-t-test metrics for GTPA and estimated area by all UNet models for CCA database.

	Mean ± SD	Std Error of Mean	Mean Difference	SD of Differences	Std Error of Mean Difference	95% CI	Test Statistic-t	p-Value <
UNet	34.0097 ± 15.8775	0.6093	−4.5858	7.5137	0.2883	−5.1520 to −4.0197	−15.904	0.0001
UNet++	36.6595 ± 18.2781	0.7014	−1.9361	5.4177	0.2079	−2.3443 to −1.5278	−9.312	0.0001
UNet3P	33.4363 ± 15.6883	0.6031	−5.1592	7.9247	0.3041	−5.7564 to −4.5621	−16.964	0.0001
Fractal-UNet	33.5501 ± 16.1022	0.6179	−5.0454	7.1421	0.2741	−5.5836 to −4.5073	−18.408	0.0001
Squeeze-UNet	33.1997 ± 15.5589	0.5971	−5.3958	9.0953	0.349	−6.0811 to −4.7105	−15.459	0.0001
Attention-UNet	34.0731 ± 17.8005	0.6831	−4.5224	5.3039	0.2035	−4.9221 to −4.1228	−22.218	0.0001

GTPA: Mean = 38.5955 mm² SD = 19.4775 mm².