Diagnostic Accuracy of Fluorine-18-Fluorodeoxyglucose Positron Emission Tomography in the Evaluation of the Primary Tumor in Patients with Cholangiocarcinoma: A Meta-Analysis

Table 1

Basic characteristics of the included studies.

Authors	Year	Country	Study design	Patients performing ^18F-FDG-PET or PET/CT	Mean age; (years)	Gender; (% male)	Site of primary tumour
Fritscher-Ravens et al. [6]	2001	Germany	Prospective	15	58	60%	15 H-CCa
Kluge et al. [7]	2001	Germany	Prospective	54	NR	54%	NR
Kato et al. [8]	2002	Japan	NR	30	68	70%	30 EH-CCa
Kim et al. [9]	2003	Korea	Retrospective	21	57	52%	10 H -CCa and 11 IH-CCa
Anderson et al. [10]	2004	USA	NR	36	63	55%	NR
Reinhardt et al. [11]	2005	Germany	NR	20	63	50%	20 H-CCa
Wakabayashi et al. [12]	2005	Japan	Retrospective	30	71	50%	5 IH-CCa and 25 EH-CCa
Petrowsky et al. [13]	2006	Switzerland	Prospective	61	64	51%	14 IH-CCa and 33 EH-CCa
Prytz et al. [14]	2006	Sweden	Prospective	24	39	83%	NR
Nishiyama et al. [15]	2007	Japan	Retrospective	37	70	59%	29 EH-CCa
Corvera et al. [16]	2008	USA	Retrospective	126	62	52%	41 EH-CCa and 21 IH-CCa
Furukawa et al. [17]	2008	Japan	Prospective	72	69	57%	64 EH-CCa
Kim et al. [18]	2008	Korea	Prospective	123	60	65%	36 IH-CCa and 87 EH-CCa
Li et al. [19]	2008	Germany	Prospective	17	62	65%	17 H-CCa
Moon et al. [20]	2008	Korea	Retrospective	54	59	63%	23 IH-CCa, 12 H-CCa, and 11 EH-CCa
Lee et al. [21]	2010	Korea	Retrospective	99	67	59%	17 IH-CCa and 49 EH-CCa
Alkhawaldeh et al. [22]	2011	Germany	Retrospective	65	63	60%	34 H-CCa and 23 IH-CCa
Kitamura et al. [23]	2011	Japan	NR	73	66	63%	45 H-CCa and 28 EH-CCa
Ruys et al. [24]	2011	Netherlands	Retrospective	30	62	47%	26 H-CCa
Yamada et al. [25]	2012	Japan	Retrospective	73	68	63%	16 IH-CCa, 18 H-CCa, and 20 EH-CCa
Albazaz et al. [3]	2013	UK	Retrospective	81	65	41%	47 IH-CCa and 34 EH-CCa
Choi et al. [1]	2013	Korea	Retrospective	39	64	72%	34 EH-CCa
Lee et al. [2]	2013	Korea	Retrospective	52	69	53%	23 EH-CCa, 17 H-CCa, and 12 IH-CCa

NR: not reported; H-CCa: hilar cholangiocarcinoma; EH-CCa: extrahepatic cholangiocarcinoma; IH-CCa: intrahepatic cholangiocarcinoma.