On-line volume
0
1
2
3
4
5
6
Number of fractions
On-line volume
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Patient number
Small
Intermediate Large
139 RT fractions assessed
•
68 (49%) small, 63 (45%) medium and 8 (6%) large selected
•
3 (12%) same plan throughout the course
•
Manual isocentre shift in 15 fractions (10%)
•
1 fraction CTV considered too large for the large plan