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Is optimization required?
•
Strict following of the rules
Good coverage of the target
Homogeneity
Conformity to LDR experience
•
Optimizing
Contra balance geometrical limits
Anatomical constraints (parallelism)
Material : plastic tubes (divergence / convergence)
Skills (operator)
impossibility of using templates
Adaptive BT
Planning aims
Boosts (GTV/CTV)