379 / 1241
28%
3%
14%
41%
3%
10%
In your daily work, how do you cope with
movements in lung cancer patients
A. We only delineate on a random
planning CT
B. We use a mid ventilation scan
C. We use slow CT
D. We use several phases of a 4D-CT
and delineate an ITV
E. We use several phases of a 4D-CT
and use the van Herk formula
F. We use 4D PET/CT