IMRT 2018

Can#be#caused#by…

The systematic part Σ:

The random part σ:

• Misplaced tattoo • Misalign laser • Error in data transport between the CT and treatment machine

• Patient movement • Tumour movement • Mobility of the patients body costume

Σ XX#XXX XX#XXxxXX XX#XXX #XxX

XX#XXX#XX XX#X σ X X#X X#XX XX#XX

X#XX X#X