2544-2545 / 3581
PTV definition
ORGAN MOTION
•
According to
tumour size and
regression
–
Mean
displacement
- 8 mm in small
Tumour
- 18 mm in large
Tumour
•
According to age
–
Mean angulation
of cervical canal
- 17.5
°
< 60 years
- 9.5
°
> 60 years
Huh et al Radiother Oncol 2004;71:73-79