SBRT2015

SBRT for re-irradiation

Case example: re-irradiation for verterbral metastasis

Assumption of spinal cord tolerance:

40Gy

-31 years

20 + 2 Gy

-2 years

62Gy

physical dose

50% recovery

30Gy

residual „damage“

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Maximum dose of 20Gy in 15 fractions

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Worst case scenario

•

50% recovery because of (very) long interval

Re-irradiation for spinal metastases