732 / 1578
50 – 62 – 83 – 91
•
The median absorbed dose, D
50%
,
should be as close as possible to
the near-minimum dose, D
98%
.
•
Emphasis on dose homogeneity
SBRT 2017 - D. Verellen
•
Steep dose gradients, dose fall-off,
and small lesions.
•
accept dose heterogeneity
to
obtain optimal conformity and
steep gradients