Radical external radiotherapy
A stable and reproducible position during imaging and
treatment is essential
•
arms above head
•
stable arm support
1B
Planning CT scan extends from cricoid cartilage to L2
1B
Slice thickness of 2-3 mm for delineation and DRR
1B
IV contrast can improve delineation of centrally located
primary tumors and lymph nodes
1C
4D-CT scan is strongly preferred
1B
De Ruysscher EORTC JCO 2010