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Size of gross (GTV) and planning target volumes (PTV) over the course of radiotherapy (negative values correspond to shrinkage).
| Planning – 1st fraction | Week 1 | Week 2 | Week 3 | Week 4 | Week 5 | Week 6 | Week 7 | |
|---|---|---|---|---|---|---|---|---|
| Mean GTV shrinkage [%] | +2.9 | -1.6 | -6.7 | -9.6 | -11.9 | -7.4 | -5.1 | -3.4 |
| Mean PTV shrinkage [%] | +2.7 | -2.4 | -3.1 | -3.3 | -3.3 | -3.1 | -4.7 | -3.2 |
