Study Year Method Number of patients/ Number of lesions treated Mean KPS Median Age Patients with single metastasis (%) Patients receiving concurrent/ previous WBRT (%) Mean tumor volume (cm^3) Median survival time (mos) Mean marginal dose (Gy) Local control (%)
Kilburn 2014 GK 44/52 80 (median) 57 25 57 0.134(median) 6 18(median) 82
Peterson 2014 GK 41/NR NR 59 (median) 73 46 0.66 4.4 17 91
Jung 2013 GK 32/NR NR 50 34 53 0.71 5.2 13(median) 87.5
Sengoz 2013 GK 44/46 80 (median) 57 34 66 0.6 8 16 (median) 96
Kawabe 2012 GK 200/222 90 (median) 64 (mean) 93 7 1.3 6 18 82
Leeman 2012 LINAC 36/38 80 (median) 62 24 44 0.94 (median) 3 17 93
Li 2012 GK 28/32 80 (median) 61 18 0 0.783 (median) 9 16 (median) 90.6
Lin 2012 LINAC 45/48 80 (median) 60 (mean) 96 47 0.4 (median) 11.6 14 (median) 92
Yoo 2011 GK 32/NR NR 56 (mean) 19 NR 1.5 7.7 15.9 87
Valery 2011 LINAC 30/43 80 57 (mean) 67 27 2.8 (median) 10 13.4 90
Hatiboglu 2011 LINAC 60/NR 90 (median) 61 NR 25 1.0 (median) 4.2 15.0 (median) 76
Kelly 2011 LINAC 24/NR 80 (median) 57 13 96 0.2 (median) 5.3 13 79
Koyfman 2010 GK 43/43 80 (median) 59 100 79 0.37 (median) 5.8 15.0 (median) 85
Samblas 2009 LINAC 28/30 NR 53 (mean) 46 96 1.86 16.8 11 NR
Lorenzoni 2009 GK 25/27 79 53 24 52 0.6 11.1 20 95
Kased 2008 GK 42/44 90 (median) 55 12 57 0.26 (median) 9 16.0 (median) 85
Hussain 2007 GK 22/25 92 60 86 14 0.90 (median) 8.5 16.0 (median) 100
Fuentes 2006 GK 28/NR 80 58 (mean) 71 21 2.1 12 19.6 92
Yen 2006 GK 53/NR 80 57 (mean) 36 40 2.8 11 17.6 NR
Shuto 2003 GK 25/31 NR 54 32 28 2.1 4.9 13 77
Huang 1999 GK 26/27 80 61 42 92 2 9 16.0 (median) 95
Abbreviations: NR - not reported, GK – Gamma Knife, LINAC – linear accelerator
Table 1: Patient characteristics, dose, and local control [1,2,4-6,8-22].