Table 4: Performance comparison of abdominal CT focal liver lesion classification results. (Sens.: Sensitivity, Spec.: Specificity)

Methods	Accuracy [%]	F1-Score [%]	Cyst		Hemgnaioma		Metastasis
			Sens. [%]	Spec. [%]	Sens. [%]	Spec. [%]	Sens. [%]	Spec. [%]
Baseline (StyleGAN 0%)	72.25±1.01	60.71±1.12	85.63±2.11	82.01±1.74	29.33±1.49	89.46±1.95	69.40±1.22	84.94±0.69
StyleGAN 25%	73.42±1.89	62.66±3.47	87.34±1.50	80.67±1.29	33.33±11.79	91.55±3.35	69.53±3.31	85.06±2.59
StyleGAN 50%	73.16±1.73	61.97±1.76	85.78±2.17	77.88±1.40	28.00±5.58	94.58±2.81	71.41±2.91	82.41±1.04
StyleGAN 75%	71.14±0.99	59.63±1.38	81.41±1.69	78.10±1.45	24.67±8.69	95.52±2.46	71.68±2.70	76.58±1.61
StyleGAN 100%	40.98±0.87	35.75±9.04	56.88±24.33	64.47±36.08	57.33±32.09	62.45±21.16	24.03±13.56	91.39±5.27