IMRT

FAQ:

Why do we need dose optimization if all we want to do is dose planning?

What do we actually optimize? Dose? Cost functions? Beamlets?

What optimization algorithm to use, and why?

Weight Factors, Constraints, Objectives – why is it so complex?

What is the point in optimizing undeliverable fluence profiles first?

Why does the dose get worse after MLC sequencing? And isn ´ t direct aperture optimization better anyway?

How much optimization is actually in an IMRT optimizer?

Cost functions: Which one to use when?

Do we really need ‘complicated’ cost functions like the serial complication model CF?

ESTRO IMRT course 2015 IMRT optimization: algorithms&cost functions Brussels October 5th, 2015

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