| IMRT(n = 12) | 1A(n = 12) | 1Am(n = 12) | 2A(n = 12) | 2Am(n = 12) |
---|---|---|---|---|---|
PTV | Â | Â | Â | Â | Â |
Dmax (%) | 108.1 (104.3 - 113.0) | 107.8 (104.8 - 115.5) | 107.2 (104.8 - 110.4)c+ | 107.0 (103.6 - 112.8) | 106.3 (103.6 - 109.0)a+c+ |
V95% (%) | 95.3 (90.6 - 99.3) | 91.0 (75.6 - 99.2) | 92.2 (83.5 - 99.2) | 91.1 (75.6 - 99.8) | 93.0 (81.0 - 99.8) |
HI | 1.09 (1.05 - 1.13) | 1.14 (1.05 - 1.38) | 1.11 (1.05 - 1.18)c | 1.13 (1.04 - 1.35) | 1.10 (1.04 - 1.19)c |
CN | 0.78 (0.72 - 0.86) | 0.80 (0.57 - 0.93) | 0.83 (0.67 - 0.93)ac | 0.81 (0.56 - 0.94) | 0.84 (0.65 - 0.94)ac |
Body | Â | Â | Â | Â | Â |
Dmean (Gy) | 13.5 (3.8 - 21.9) | 13.2 (4.4 - 21.0) | 13.1 (4.4 - 20.7)c | 13.2 (4.3 - 20.9) | 13.2 (4.4 - 20.9)c |
V5Gy (%) | 43.2 (17.7 - 62.1) | 45.3 (20.8 - 63.7)a+ | 45.3 (21.1 - 62.0)ac | 45.4 (21.1 - 62.9)a+ | 45.5 (21.0 - 62.4)a+c |
Brain stem | Â | Â | Â | Â | Â |
Dmax (Gy) | 50.0 (43.5 - 56.6) | 53.1 (51.4 - 56.7)a | 53.6 (51.3 - 56.7)ac | 52.8 (51.0 - 55.1) | 52.9 (51.0 - 55.1)c |
Lenses | Â | Â | Â | Â | Â |
Dmax (Gy) | 7.3 (1.0 - 49.3) | 5.5 (1.5 - 11.8) | 7.0 (1.5 - 31.2)a | 5.7 (1.5 - 11.3) | 6.9 (1.5 - 32.1) |
Lens lft | Â | Â | Â | Â | Â |
Dmax (Gy) | 4.2 (1.2 - 11.9) | 5.4 (1.5 - 11.8)a+ | 4.9 (1.5 - 11.7)a+ | 5.5 (1.5 - 10.6)a | 4.8 (1.5 - 11.6)a+ |
Lens rt | Â | Â | Â | Â | Â |
Dmax (Gy) | 10.5 (1.0 - 49.3) | 5.7 (1.5 - 11.1) | 9.1 (1.5 - 31.2) | 5.8 (1.5 - 11.3) | 9.0 (1.5 - 32.1) |
Chiasm | Â | Â | Â | Â | Â |
Dmax (Gy) | 50.1 (43.2 - 56.7) | 50.9 (32.7 - 60.7)b | 51.9 (36.5 - 60.7) | 50.2 (29.8 - 60.3)b | 51.4 (33.4 - 60.3) |
Optical nerves | Â | Â | Â | Â | Â |
Dmax (Gy) | 43.2 (25.8 - 64.4) | 40.2 (18.5 - 54.1) | 41.0 (19.0 - 59.7) | 39.8 (19.0 - 52.8)a | 41.5 (19.7 - 60.0) |
Optical nerve lft | Â | Â | Â | Â | Â |
Dmax (Gy) | 42.3 (27.3 - 52.6) | 41.4 (29.3 - 50.4) | 42.1 (31.4 - 47.8) | 40.9 (29.2 - 46.6) | 42.3 (30.0 - 49.6) |
Optical nerve rt | Â | Â | Â | Â | Â |
Dmax (Gy) | 44.1 (25.8 - 64.4) | 39.0 (18.5 - 54.1) | 39.8 (19.0 - 59.7) | 38.8 (19.0 - 52.8)a | 40.8 (19.7 - 60.0) |
MU | 454.0 (330–775) | 303.0 (261–342)a+ | 302.6 (279–342)a | 293.2 (156–331)a+ | 293.7 (156–331)a+ |