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VUMC strategy with average density CT (Ong
et al.
, PhD thesis)
SBRT 2017 - D. Verellen
PTV &
tissue heterogeneity &
dose prescription
Free breathing fast 3D-CT
Average intensity
Ø
Risk for underestimating dose to the
real GTV (which has higher densities).
Ø
Risk for modulating fluence to non-
existing tissues.