Radiological Imaging for Assessing the Respectability of Hilar Cholangiocarcinoma: A Systematic Review and Meta-Analysis

Table 1

Main characteristics of the included studies.

Author	Year of publication	Country	Number of patients	Age, mean (range)	Patients selection	Modality	Study design	QUADAS Score
Cha et al. [8]	2000	Korea	21	56 (34–69)	Consecutive	CT	Retrospective	11
Lee et al. [9]	2006	Korea	55	59 (29–76)	NA	CT	Retrospective	12
Aloia et al. [10]	2007	USA	32	67	Consecutive	CT	Prospective	11
Endo et al. [11]	2007	Japan	20	65 (50–80)	Consecutive	CT	NA	12
Unno et al. [12]	2007	Japan	24	64	Consecutive	CT	Retrospective	11
Yin et al. [19]	2007	China	31	53 (21–74)	Consecutive	MRI	NA	12
Masselli et al. [20]	2008	Italy	15	58 (49–74)	NA	MRI	Retrospective	12
Park et al. [13]	2008	Korea	27	60 (43–80)	NA	CT; MRI	Retrospective	12
Li et al. [22]	2008	Germany	17	62	NA	PET/CT	Prospective	11
Kim et al. [14]	2008	Korea	123	60 (28–78)	Consecutive	CT; MRI; PET/CT	Prospective	12
Chen et al. [15]	2009	China	75	60	Consecutive	CT	Prospective	12
Yu et al. [16]	2010	China	13	65 (54–79)	NA	CT	NA	11
Ryoo et al. [21]	2010	Korea	60	66 (45–77)	Consecutive	MRI	Retrospective	12
Cannon et al. [17]	2012	USA	110	64 (21–88)	Consecutive	CT	Retrospective	11
Gu et al. [23]	2012	China	32	56	NA	PET/CT	Retrospective	10
Nagakawa et al. [18]	2014	Japan	13	65 (39–83)	NA	CT	NA	11

NA = data not available.