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MU range checking
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In house NKI development
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Plans following a certain protocol, e.g. prostate
– Amount of MU for a VMAT plan will be similar for each patient
– Depends a little on patient size, etc
MU range check
– If patient does not fall within the range, something may have gone wrong
– Check by physics
– About 5-10%
– Usually anatomical reasons
– Some errors found (wrong dose specification point)