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An example
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Description of the treatment planning system
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The treatment planning was made with Multiplan
version 2.2.0, the treatment planning system of
the Cyberknife (Accuray, Sunnyvale, CA).
Multiplan has implemented both equivalent path
length (EPL) and Monte Carlo (MC) dose
calculation algorithms. The MC dose calculation
algorithm was validated (Grofsmid et al., 2010).
The treatment plans in Multiplan were first
recalculated with EPL, and then with MC. This
was done to eliminate subtle differences
between the OnTarget and Multiplan treatment
planning systems. A high-resolution grid (256 ×
256) was used for the EPL and MC calculations
and the type-A uncertainty in the MC calculation
was set to 2 %. MC computation time was
approximately 5–10 minutes
SBRT 2017 - D. Verellen