163 / 1138
SBRT 2015 - D. Verellen
Tumor tracking: couch compensation
Dynamic couch compensation
“Keeping
the tumor position fixed in space
by
counteracting motions
of the treatment
couch and irradiate with
a static beam”
•
Advantages
:
!
Free breathing
!
Linac can operate as in a static situation
!
Using a “work horse” linac
•
Drawbacks
:
!
Discomfort patient? Relaxing?
!
Impact on tumor motion, patient positioning?
!
Changing position of beam with respect to
patient anatomy
Linac
Courtesy O. Haas
4