Course book Advanced Treatment Planning 2018
Can we derive an internal target volume from 3D PET?
12 NSCLC scheduled for SBRT; 4D PET/CTs, 4 observers:
1. ITV in 4D CT „gold standard“
30
2. „GTVs“ in 3D PET 3. ITVs from 4D PET
25
20
15
ITV-4D CT
- manual - Homburg algorithm - Rover algorithm
3D-GTV-PET
ml
ITV- 4D PET
10
5
- 40% SUVmax - 15% SUVmax
0
manual mean HOM Rover
40% 15%
26
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