18F-FDG Avidity of Studies Included in Systematic Review
| Study | No. of patients | Study period | 18F-FDG avidity (%) |
| Chen et al., 2005 (5) | 68 | Aug 2000–June 2003 | 94.1 |
| Chung et al., 2013 (24) | 131 | April 2006–Oct 2010 | 77.9 |
| Ha et al., 2011 (9) | 78 | Feb 2007–Oct 2008 | 65.4 |
| Herrmann et al., 2007 (4) | 45 | Not stated | 68.9 |
| Hur et al., 2010 (28) | 142 | Jan 2007–Nov 2008 | 88.7 |
| Kameyama et al., 2009 (29) | 20 | Not stated | 95 |
| Kim et al., 2006 (7) | 73 | Oct 2002–Dec 2004 | 95.9 |
| Kim et al., 2011 (26) | 78 | Oct 2003–Oct 2007 | 93 |
| Lee et al., 2013 (32) | 44 | Feb 2009–Dec 2011 | 50 |
| Li et al., 2012 (27) | 124 | March 2007–Sept 2011 | 90.3 |
| Mochiki et al., 2004 (6) | 85 | Jan 2000–June 2002 | 75.3 |
| Mukai et al., 2006 (13) | 62 | July 2004–June 2005 | 58.1 |
| Namikawa et al., 2014 (30) | 90 | Jan 2009–Dec 2011 | 78.9 |
| Oh et al., 2011 (10) | 136 | Dec 2007–March 2010 | 52.9 |
| Stahl et al., 2003 (12) | 40 | Not stated | 60 |
| Yamada et al., 2006 (17) | 35 | April–Dec 2003 | 47.5 |
| Youn et al., 2012 (23) | 396 | Jan 2009–Dec 2009 | 42.2 |
| Yun et al., 2005 (8) | 81 | Not stated | 87.7 |