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Percentage of ipsilateral lung that received 20 Gy of 3DCRT plans and IMRT plans with different numbers of beams.
| Treatment techniques | Percentage of ipsilateral lung that received 20 Gy (V20) (mean ± std.deviation) |
|---|---|
| CTT | 14.62 ± 6.93 |
| IMRT7 | 9.08 ± 3.89A,B |
| IMRT9 | 8.12 ± 3.46A |
| IMRT11 | 8.57 ± 3.57A,B |
p < 0.05 significantly higher than CTT.
p < 0.05 significantly higher than IMRT9.
