BCRB 2018

Image-Guided Radiation Therapy in HNSCC Impact of imaging modality on CTV/PTV delineation

CT-scan FDG-PET Larynx/hypopharynx (n=9) ANOVA: p<0.05

Oropharynx (n=10)

200

100 150 200 250

CT-scan FDG-PET

150

ANOVA: p<0.01

100

50

0 50

0

GTV

CTV

PTV

GTV

CTV

PTV

Average (± sem) volume (cc)

Average (± sem) volume (cc)

ESTRO 2018

Geets et al , 2003