Table 2.
Characteristic | No. of Patients | Median GTV size, cm3 (range) |
---|---|---|
BEDio ≥ 100 Gy | 49 | 11.1 (0.7-110.8) |
60 Gy in 3 fx (BED10= 180) | 4 | 10.7 (4.5-18.6) |
54 Gy in 3 fx (BED10= 151.2) | 9 | 10.1 (0.7-44.7) |
48 Gy in 4 fx (BED10= 105.6) | 21 | 8.4 (1.3-110.8) |
36 Gy in 2 fx (BED10= 100.8) | 1 | 10.6 (10.6) |
50 Gy in 5 fx (BED10= 100) | 14 | 15.2 (0.9-49.2) |
BED10 < 100 Gy | 76 | 17.0 (0.7-195.4) |
44 Gy in 4 fx (BED10= 92.4) | 1 | 9.9 (9.9) |
45 Gy in 5 fx (BED10= 85.5) | 56 | 13.0 (0.6-25.9) |
40 Gy in 4 fx (BED10= 80) | 2 | 52.7 (32.6-72.8) |
36 Gy in 3 fx (BED10= 79.2) | 1* | 27.3 (27.3) |
40 Gy in 5 fx (BED10= 72) | 6* | 49.7 (6.1-71.9) |
30 Gy in 5 fx (BED10= 48) | 7* | 43.7 (19.4-186.6) |
Other* | 3* | 38.2 (5.2-105.1) |
GTV size | ||
0-10cm3 | 46 | |
10-20cm3 | 36 | |
20-50cm3 | 27 | |
>50cm3 | 16 | |
Median BED10 Gy (range) | 85.5 (43.2-180) | |
Median PTV size, cm3 (range) | 63.0 (17.3-401.7) | |
Median GTV size, cm3 (range) | 13.1 (0.6-195.4) |
Excluded from local failure analysis.
Abbreviations: BED10, Biologically equivalent dose for α/β = 10; PTV, planning treatment volume; GTV, gross tumor volume; Gy, gray; fx, fraction.