Basic Treatment Planning

Isocentre Placement 2

• Ref point

 will not need moves/verif  not always suitable for ipsilateral target • Centre of PTV  will require daily moves in all directions and verif • Standard moves  will require moves daily and verif 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