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The QUANTEC Report 2010
•
Very limited information concerning re-irradiation
•
Maybe, because reliable data is limited …
Even in a so-called intra-departmental situation, using the same
treatment planning system for years, it ‘
was
’ difficult to accumulate
dose.
In an inter-departmental situation, with patients being referred from
other centres, compatibility issues made it impossible to accurately
assess the previous dose, let alone accumulate dose accurately.
Even when dose matrices can be accumulated, using deformable
registration algorithms some issues remain to be solved:
Accuracy of deformable registration algorithm
Assessing differences in dose fractionation
Accounting for different sensitivities and different doses delivered to OAR’s
Type A or B dose calculation algorithm?
re-irradiation 2017 - D. Verellen