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Conclusion
•
Broadbeam/Correction based methods
Ø
Accurate ONLY for simple fields
•
Pencil beam algorithm
Ø
Used to overcome limitations with irregular
fields
•
Analytical Anisotropic Algorithm
•
Extension to pencil beam accounting for lateral
scatter
•
Convolution algorithms
Ø
Provide high accuracy with inhomogeneities
•
Monte Carlo
Ø
Available in clinical TPS with acceptable
calculation time
•
Solution of the Boltzman transport equation
Ø
Promising alternative for Monte-Carlo?
Izmir ESTRO physics
course, March 2013
Type A
Type B
Reference
TypeAlgorithme