Table 1 Patients and target volumes analysed. PTV: planning target volume
From: Imaging dose and secondary cancer risk in image-guided radiotherapy of pediatric patients
Case | Patient | Age at treatment | PTV | Prescription | Imaging |
|---|---|---|---|---|---|
1 | 1 | 16 | 1st series: right lung; 2nd series: right lung and infraclavicular/pectoral/ mediastinal lymphatics | 1st series: 3x100cGy; 2nd series: 11 × 100 cGy; 11x166cGy | 1 x 6MV axes 11 x IBL axes |
2 | 2 | 15 | bilateral neck cervical, supra- and infraclavicular lymphatics and mediastinum | 11x180cGy | 1 x 6MV axes 3 x IBL axes |
3 | 3 | 17 | Right cervical/mediastinal lymphatics | 11x180cGy | 4 x 6MV axes 1 x 6MV CBCT (7.2 MU) |
4 | 4 | 16 | 1st series: Mediastinum 2nd series: Boost Mediastinum | 1st series: 11x180cGy; 2nd series: 5x200cGy | 1 x 6MV axes 4 x IBL axes |
5 | 4 | 16 | Spleen | 11x180cGy | 1 x 6MV axes 4 x IBL axes |
6 | 5 | 16 | 1st series: Mediastinum; 2nd series: Boost macroscopic residual disease (Mediastinum) | 1st series: 11x180cGy; 2nd series: 5x200cGy | 6 x kV axes 1 x kV CBCT (414 mAs) |
7 | 5 | 16 | Spleen | 11x180cGy | 1 x 6MV/IBL axes 1 x kV axes 1 x kV CBCT (621 mAs) |
8 | 6 | 5 | bilateral neck, supra-infraclavicular, mediastinal and paraaortic lymphatics, spleen | 11x180cGy | 3 x 6MV axes 5 x 6MV CBCT (54 MU in total) |
9 | 6 | 5 | Os ileum | 11x180cGy | 5 x 6MV portal images |
10 | 7 | 13 | Left cervical lymphatics | 11x180cGy | 1 x kV axes 2 x kV CBCT (458 mAs in total) |
11 | 7 | 13 | Spleen | 11x180cGy | 2 x kV axes 3 x kV CBCT (1103 mAs in total) 1 x IBL CBCT (11 MU) |