Third-Generation Capsule Endoscopy Outperforms Second-Generation Based on the Detectability of Esophageal Varices

Table 3

Accuracy of capsule endoscopy for the diagnosis of esophageal varices.

(a)

SB2 findings	EGD findings		Total
	+	−
+	36	0	36
−	19	44	63
Total	55	44	99

value, 0.63; sensitivity, 65%; specificity, 100%; positive predictive value, 100%; negative predictive value, 70%.

(b)

SB3 findings	EGD findings		Total
	+	−
+	47	0	47
−	11	18	29
Total	58	18	76

value, 0.67; sensitivity, 81%; specificity, 100%; positive predictive value, 100%; negative predictive value, 62%.
EGD: esophagogastroduodenoscopy; SB2: second-generation PillCam SB2; SB3: third-generation PillCam SB3.