Basic Treatment Planning

Isocentre Placement 2

• Reference point

will not need moves/verification not always suitable for ipsilateral target

• Centre of PTV

will require daily moves in all directions and verification

• Standard moves

will require moves daily and verification but can be made in whole numbers and only in required directions • For ease of set-up and accuracy no moves from ref. point is the ideal (high proportion of errors in RT are in relation to moves) however if needed try to keep them standard