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.