Clinical Research of Combined Application of DCEUS and Dynamic Contrast-Enhanced MSCT in Preoperative cT Staging of Gastric Cancer

Table 5

Results of validity, reliability, and revenue.

	Validity			Reliability		Revenue
	Sensitivity (%)	Specificity (%)	Youden index (%)	Coincidence rate (%)	Kappa value	Positive predictive value (%)	Negative predictive value (%)
MSCT
T1	27.27	99.49	26.76	95.63	0.382	75.00	96.04
T2	55.56	97.06	52.61	89.81	0.598	80.00	91.16
T3	42.11	63.64	5.74	61.65	0.024	10.53	91.54
T4	59.29	86.36	45.65	67.96	0.383	90.22	50.00
DCEUS
T1	90.91	98.46	89.37	98.06	0.823	76.92	99.48
T2	88.89	99.41	88.30	97.57	0.913	96.97	97.69
T3	78.95	86.63	65.58	85.92	0.438	37.50	97.59
T4	82.86	93.94	76.80	86.41	0.711	96.67	72.09
D&M method
T1	100.00	99.49	99.49	99.51	0.954	91.67	100.00
T2	94.44	100.00	94.44	99.03	0.966	100.00	98.84
T3	89.47	94.65	84.13	94.17	0.707	62.96	98.88
T4	93.57	96.97	90.54	94.66	0.881	98.50	87.67