Diagnostic value of magnetic resonance cholangiopancreatography in choledocholithiasis

Table 2 Additional characteristics of patients and methodologies in the included studies

Ref.	Year	Country	CBD/N-CBD, n	Reference standard	Cross-sectional design	Consecutive or random sampling	Blinded design	Prospective design
Hochwald et al[42]	1998	United States	20/28	ERCP	No	Yes	No	No
Boraschi et al[43]	1999	Italy	76/202	ERCP, PTC, IOC	No	Yes	No	No
de Lédinghen et al[44]	1999	France	10/-22	ERCP, IOC	Yes	Yes	Yes	Yes
Lomas et al[45]	1999	United Kingdom	9/60	ERCP	No	Yes	No	Yes
Varghese et al[46]	1999	Ireland	30/70	ERCP	No	Yes	Yes	Yes
Stiris et al[47]	2000	Norway	32/18	ERCP	Yes	Yes	Yes	Yes
Taylor et al[48]	2002	Australia	46/83	ERCP	Yes	Yes	Yes	Yes
Topal et al[49]	2003	Belgium	19/50	ERCP, IOC	No	Yes	No	No
Kejriwal et al[50]	2004	New Zealand	22/59	ERCP	No	Yes	No	No
Simone et al[51]	2004	France	21/44	ERCP, IOC	No	Yes	Yes	Yes
Dalton et al[52]	2005	United Kingdom	17/52	ERCP, IOC	No	Yes	No	Yes
Hallal et al[53]	2005	United States	4/-23	IOC	Yes	Yes	Yes	Yes
Kondo et al[54]	2005	Japan	24/-4	ERCP	Yes	Yes	Yes	Yes
Moon et al[55]	2005	South Korea	20/-9	ERCP, IDUS	No	Yes	Yes	Yes
Okada et al[56]	2005	Japan	15/25	IOC	No	Yes	Yes	No
Shanmugam et al[57]	2005	United Kingdom	99/122	ERCP, IOC	Yes	Yes	No	No
De Waele et al[58]	2007	Belgium	23/81	ERCP, IOC	No	Yes	No	Yes
Schmidt et al[59]	2007	Switzerland	22/35	EUS, ERCP	No	Yes	No	Yes
Hekimoglu et al[60]	2008	Turkey	18/251	ERCP	No	Yes	Yes	Yes
Nandalur et al[61]	2008	United States	28/67	ERCP, PTC	Yes	Yes	No	No
Norero et al[62]	2008	Chile	86/39	ERCP	No	Yes	No	No
Srinivasa et al[63]	2010	Australia	23/104	ERCP, IOC	No	Yes	No	No
Bilgin et al[64]	2012	Turkey, Germany	34/74	ERCP, PTC	No	Yes	No	No
Zhang et al[65]	2012	China	20/50	MDCT	No	Yes	Yes	No
Mandelia et al[66]	2013	India	20/-10	ERCP	No	Yes	No	Yes

CBD: Common bile duct; ERCP: Endoscopic retrograde cholangiopancreatography; EUS: Endoscopic ultrasonography; IDUS: Intraductal ultrasonography; IOC: Intraoperative cholangiography; MDCT: Multidetector-row computed-tomography; PTC: Percutaneous transhepatic cholangiography.