Advanced TP

Where to place the isocenter?

- high dose region is the most favorite place for the physicist  (and normally it is a very good choice!)

- find the best isocenter location with respect to:

MLC limits

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use of wedges

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- build up area, air cavities, bone

- isocenter position outside the high dose region often results in a more complicated plan

- apply a-priori patient set-up translations if necessary