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. 2013 Mar 5;8:48. doi: 10.1186/1748-717X-8-48

Table 2.

Values of Veff and mean FED

ID.
Nominal diameter of GTV (cm)
V33
V42
Veff*
DMean
Mean FED*
    IMRT (%) SSPT (%) IMRT (%) SSPT (%) IMRT SSPT p-value IMRT (Gy) SSPT (Gy) IMRT (Gy) SSPT (Gy) p-value
1
3.4
21.4
19.3
18.1
15.9
0.56
0.29
0.021
24.4
16.3
35.9
20.2
0.012
2
4.8
26.4
19.1
20.8
14.2
0.49
0.30
21.4
16.4
33.1
20.1
3
5.1
18.7
15.9
15.5
14.5
0.46
0.25
19.8
13.6
30.3
16.6
4
5.4
25.4
17.8
17.9
17.9
0.40
0.24
24.2
17.7
32.8
15.2
5
6.3
31.2
21.2
23.2
20.2
0.47
0.33
 
37.9
22.4
37.9
19.9
 
6
7.8
61.8
30.0
40.9
28.3
0.70
0.47
< 0.001
36.9
27.4
52.5
33.1
< 0.001
7
8.2
67.5
27.3
59.7
27.3
0.72
0.49
36.1
28.1
54.5
32.5
8
8.3
76.9
41.2
42.7
27.7
0.62
0.32
32.7
17.4
56.7
24.2
9
8.7
70.0
45.6
60.4
27.9
0.75
0.53
38.3
28.6
58.1
33.3
10
11.1
61.3
39.8
60.2
28.2
0.76
0.44
38.8
24.4
67.9
27.3
11
12.1
89.5
50.9
67.3
30.9
0.83
0.57
41.9
31.7
75.4
32.4
12
14.6
70.9
48.2
55.3
29.7
0.73
0.45
37.1
25.6
64.2
30.4
13
16.1
64.7
48.5
62.4
37.9
0.86
0.55
42.4
30.3
78.4
31.5
ave. 8.6 52.7 32.7 41.9 24.7 0.64 0.40   33.2 23.4 52.1 25.9  

*The values of Veff and mean FED were normalized to 1.5 Gy per fraction, assuming an α/β of 2.5.