Clinical application of oral contrast-enhanced ultrasound in evaluating the preoperative T staging of gastric cancer

Table 4 The diagnostic value of oral contrast-enhanced ultrasound T-staging compared with pathological T-staging of gastric cancer (%)

OCEUS T-stage	Validity			Reliability		Revenue
	Sensitivity	Specificity	Youden index	Coincidence rate	Kappa value	Positive predictive value	Negative predictive value
T1a	71.87	99.2	71.07	98.23	0.73	76.66	98.97
T1b	40.35	98.82	39.17	95.15	0.49	69.69	96.11
T2	62.76	95.71	58.47	92.29	0.58	62.76	95.71
T3	88.23	83.54	71.77	84.59	0.62	60.81	96.08
T4a	77.64	91.07	68.71	84.92	0.69	88.01	82.84
T4b	74.52	98.75	73.27	95.92	0.79	88.76	96.71

OCEUS: Oral contrast-enhanced ultrasound.