Radiation treatment planning | PTVWB- A or -B | PTVmet | Major deviations |
---|---|---|---|
Prescribed total dose to PTV | 30 Gy | 51Gy (brain stem metastasis and resection cavity: 42Gy) | < or > 30Gy for PTVWB-A or -B < or > 51Gy for PTVmet (brain stem metastasis and resection cavity: < or > 42Gy) |
Prescribed dose per fraction in PTV | 2.5 Gy | 4.25Gy (brain stem metastasis and resection cavity: 3.5Gy) | < or > 2.5Gy for PTVWB-A or -B < or > 4.25Gy for PTVmet (brain stem metastasis and resection cavity: 3.5Gy) |
Number of fractions per day | 1 | 1 | > 1 |
Treatment duration | 12 days 5 days/week | 12 days 5 days/week | < or > 12 days < 4 or > 5 days/week |