Table 2. Performance evaluation of kidney tumor segmentation by size

Size	Methods	Balanced Accuracy(%)	DSC (%)	Precision (%)	Recall (%)
Small (tumor<2.3cm)	UNETR++	81.92±16.72	57.32±31.89	69.93±29.35	63.90±33.44
	Ours	80.09±19.72	56.37±37.84	71.82±27.78	60.20±39.43
Medium (2.3cm≤tumor<4.3cm)	UNETR++	88.98±12.39	77.23±24.25	83.57±19.61	78.04±24.80
	Ours	88.73±12.65	77.14±23.45	85.87±16.34	77.53±25.34
Large (4.3cm≤tumor<7.4cm)	UNETR++	94.46±4.88	86.45±10.34	86.34±13.43	89.23±9.78
	Ours	94.65±4.98	87.05±9.87	87.04±13.16	89.53±10.00
Extremely large (7.4cm≤tumor )	UNETR++	96.28±3.28	91.85±6.91	91.71±8.72	93.09±6.56
	Ours	96.52±2.85	92.29±7.54	92.18±9.18	93.54±5.56
Overall	UNETR++	90.43±11.81	78.48±24.08	83.13±20.71	81.08±23.69
	Ours	90.07±12.95	78.54±25.42	85.07±18.92	80.33±25.97