ESTRO course on Image Guided Radiotherapy in Clinical Practice 2018

ESTRO IG and Adaptive

Course Parikh Budapest 2018

Impact of MRI on prostate target delineation

variation on the clinic

Beware that MRI/CT difference can occur due to different

rectal/bladder filling

Use a flat table top and same cushions

CT prostate 1.4 x as MRI prostate in volume

Less dose to apex, base of seminal vesicles

Observer variation is smaller than impact of modality

difference

For

prostate only

MRI based delineation is superior to CT

based delineation

RT according to delineation of the prostate on MRI

decreases dose to the rectal wall