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Conformity index of 3DCRT plans and IMRT plans with different numbers of beams according to breast volume.
| Treatment techniques | Conformity index (mean ± std.deviation) |
|
|---|---|---|
| Breast volume < 853 cc | Breast volume ≥ 853 cc | |
| CTT | 0.81 ± 0.11 | 0.71 ± 0.12 |
| IMRT7 | 0.84 ± 0.06 | 0.83 ± 0.03 |
| IMRT9 | 0.85 ± 0.05 | 0.84 ± 0.02 |
| IMRT11 | 0.85 ± 0.05 | 0.85 ± 0.02 |
