Table 1. The findings of SOCEUS compared with postoperative pathological results.

SOCEUS	Postoperative pathological results
Classification	Borrmann I	Borrmann II	Borrmann III	Borrmann IV
Borrmann I	8	1	1	0
Borrmann II	1	17	6	0
Borrmann III	0	4	29	2
Borrmann IV	0	0	2	9
Total	9	22	38	11
Accuracy	88.89%	77.27%	76.32%	81.82%

SOCEUS single oral contrast-enhanced ultrasonography. The overall accuracy of SOCEUS in Borrmann classification was 78.75% (63 of 80 patients).