Dose Course 2018_Flipping book

Conclusions

Numerous approximations whose impact on the final dose accuracy should not be ignored!

• CT remains the preferred image modality • CT calibration curves and tissue segmentation key to accurate dose calculation • Be aware of how your TPS uses CT data (mass or electron density) • Understand assumptions and uncertainties in CT data • Investigate how your CT/TPS deals with high density • Dw and Dm debate continues but important to specify medium in literature