Usefulness of Magnifying Endoscopy with Narrow-Band Imaging for Determining Tumor Invasion Depth in Early Gastric Cancer

Table 3

D vessels and depth of tumor invasion.

	Mucosal cancer	Submucosal cancer
D vessel (−)	91	10	101
D vessel (+)	12	6	18
	103	16	119

Diagnostic accuracy: 81.5% (97/119).
Sensitivity: 37.5% (6/16).
Specificity: 88.3% (91/103).