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Dose localization:
ability to deliver dose precisely and
accurately to a region of interest in the
patient
→
target
(improve geometrical dose shaping )
Focus the dose on the target
(in space and time)
Target definition:
- Tumor delineation
- Organ Motion
- Organ filling
- Tumor shrinkage
Physics problem in RT
The interaction processes of each type of radiation determine
→
penetration in matter (how much radiation reaches a target)
→
the amount of dose deposited in the target
→
Dose conformation around the target (dose to the OARs)
Imaging – treatment planning - delivery technology
radiation physical properties
– technological inventions