Monaco Flashcards
What are the 2 optimzation approaches of Monaco treatment planning?
- Constrained approach
2. Pareto Optimization
Describe what constrained optimisation does to the plan
Prioritises the OARs over the targets
What are targets referred to in Monaco
objective functions
What are OARs referred to in Monaco
dose limiting cost functions
Describe what pareto optimisation does to the plan
Prioritises the targets over the OARs
What are the voxels dependant on?
Grid size & Slice thickness
Finer the dose grid the GREATER the amount of voxels
In version 5.5.1 what changes occur to the voxels
They are further split into sub-voxels. This increases the accuracy of dose control when there is overlapping structures.
Larger grid spacing?
faster but LESS accurate
Smaller grid spacing?
slower but MORE accurate
Statistical uncertainty per point control
% of statistical uncertainty per voxel, on per segment basis that you are willing to accept for the final dose calculation
What happens when you increase the statisical uncertainty?
Decreases quality of treatment plan
Why is it important to layer appropriately in Monaco?
Determines how the optimizer treats voxels in the volume where the structures overlap.
List physical cost functions used in Monaco
Overdose DVH
Quadratic overdose
Conformality
List biological cost functions used in Monaco
Serial and parallel
