872-873 / 1173
ESTRO
Image-Guided Radiation Therapy in HNSCC
0
50
100
150
200
GTV
CTV
PTV
Average (± sem) volume (cc)
CT-scan
FDG-PET
Larynx/hypopharynx (n=9)
ANOVA: p<0.05
0
50
100
150
200
250
GTV
CTV
PTV
CT-scan
FDG-PET
ANOVA: p<0.01
Oropharynx (n=10)
Average (± sem) volume (cc)
Impact of imaging modality on CTV/PTV delineation
Geets
et al
, 2003