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Compensating for unscheduled gaps
• Prolonging treatment times in the following tumours results in
↓local control and cure rates: SCC head and neck, SCC
cervix/vagina, NSCLC, medulloblastoma, oesophageal and skin
cancers and possibly TCC bladder
• Prevent gaps by ensuring adequate resources, plan machine
down time/treatment schedules and have a clear departmental
policy
• Gaps can be compensated for by:
•
Treating over a weekend or twice daily
•
Use of EQD
2
formulae in fewer fractions to achieve planned
overall treatment time
•
Deliver additional fractions/dose where compensation can’t
be achieved within the overall planned treatment time