402-403 / 1245
Conclusions
• CT remains the preferred image modality
• CT calibration curves and tissue segmentation key to accurate dose
calculation
– More important for Protons and keV (and Brachytherapy)
– Some common practices to establish tissue characterization can
introduce systematic errors into dose planning
• Dw and Dm debate continues but important to specify medium in
literature
Numerous approximations whose impact on
the final dose accuracy should not be ignored!