Efficacy and safety of disposable digital single-operator cholangioscopy: A noninferiority, multicenter, randomized, open-label, blinded endpoint trial

Table 3 Image acquisition data for cholangioscopy, n (%)

Participant numbers based on image contents	DSOC group	FSOC group	P value
Common bile duct			1.0000
Absent	2 (3.45)	1 (1.79)
Present	56 (96.55)	55 (98.21)
First-order biliary branches			0.4957
Absent	56 (96.55)	56 (100.00)
Present	2 (3.45)	0 (0.00)
Second-order biliary branches			0.2436
Absent	55 (94.83)	56 (100.00)
Present	3 (5.17)	0 (0.00)
Confluence of second-order biliary branches			0.0550
Absent	0 (0.00)	4 (7.14)
Present	58 (100.00)	52 (92.86)
Stone			0.8488
Absent	29 (50.00)	29 (51.79)
Present	29 (50.00)	27 (48.21)
Stone retrieval basket/holmium laser fiber			0.1339
Absent	33 (56.90)	24 (42.86)
Present	25 (43.10)	32 (57.14)
Biliary mucosa
Absent	0 (0.00)	0 (0.00)
Present	58 (100.00)	56 (100.00)
Image numbers based on biliary locations
Common bile duct	100 (59.17)	110 (65.48)	0.0411
Second-order biliary branches	5 (2.96)	0 (0.00)
First-order biliary branches	2 (1.18)	0 (0.00)
Confluence of second-order biliary branches	62 (36.69)	58 (34.52)
Image numbers based on captured contents
Stone	29 (17.16)	27 (16.07)	0.6765
Stone retrieval basket/holmium laser fiber	27 (15.98)	33 (19.64)
Biliary mucosa	113 (66.86)	108 (64.29)

DSOC: Digital single-operator cholangioscopy; FSOC: Fiberoptic single-operator cholangioscopy.