IGRT 2016 Madrid

Reliability of bony anatomy

Guckenberger et al. IJROBP 2007

SI

AP

LR

Correlation between soft-tissue registration and bone match

Differences between bone and tumor match (mm) LR SI AP 3D

Mean ± SD Maximum

-0.6 ± 1.0 0.0 ± 1.1 -0.2 ± 1.0

1.7 ± 0.7

1.8 2.8 Stable tumor position relative to the skull for one week interval between planning and treatment No influence of pre-treatment steroids (>48h prior) 2.3 2