Table 2. CE procedures.

Reference	Total CE, n	Complete CE with lesions requiring DBE, n	Primary lesion (n)	Index for choosing DBE route of insertion, description	Index cut-off	PillCam Progress indicator
Gay et al., 2006/France	160	38	Arterovenous malformation (n = 10)	Time from ingestion to the lesion, divided by the time for arrival of the capsule into the cecum, from the moment of ingestion	A: < 0.75, R: ≥ .75	NR
Lin et al., 2008/Taiwan	11	9	Angiodysplasia (n = 3), SB bleeding (n = 3)	Time from pylorus to lesion, divided by the transit time from pylorus to cecum	A: < 2/3, R: > 2/3	NR
Li et al., 2009/China	82	60	Suspected tumor (n = 22)	Time from pylorus to lesion, divided by the time from pylorus to ileocecal valve	A: ≤ 0.6, R: > 0.6	NR
Nakamura et al., 2010/Japan	172	46	Angiodysplasia (n = 11)	Time from duodenal bulb to lesion, divided by the time from duodenal bulb to cecum	A: < 0.5, R: > 0.5	NR
Chalazan et al., 2012/USA	60	22	Angioectasia (NR)	Time from duodenal entry to lesion, divided by the SBTT	A: < 0.57, R: > 0.74	NR
Maeda et al., 2015/Japan	89	37	Dieulafoy lesion (n = 9)	Time point of the lesion compared to the SBTT	A: < 0.5, R: > 0.5	NR
Tsuboi et al., 2019/Japan	50	50	Angioectasia (n = 12)	% of SBTT according to PillCam Progress Indicator	A: indicator ≤ 50 %, R: % indicator > 50 %	Yes

A, antegrade; CE, capsule endoscopy; DBE, double-balloon enteroscopy; NR, not reported; R, retrograde; SB, small bowel; SBTT, small bowel transit time.