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Summary of the lung IMRT plan statistics for the 4D and 3D planning. In this table, V5 are defined as percentage volume that receives 5 Gy or more dose. Conformity index is defined as the ratio of volume of reference isodose (95% isodose) and target volume.
| Lung | 4D VMAT | 3D VMAT |
|---|---|---|
| GTV mean dose | 58 Gy | 58 Gy |
| GTV dose std | 2.5 Gy | 2.5 Gy |
| GTV D90 | 95.1% | 95.0% |
| Esophagus V5 | 24% | 40% |
| Heart V5 | 85% | 95% |
| Conformity index | 1.38 | 1.41 |
