148 / 815
e.g.
GTV-T (MR, 0 Gy)
CTV-T (MR, 0 Gy) (ITV) PTV-T (MR, 0 Gy)
GTV-T (CT, 0 Gy)
CTV-T (CT, 0 Gy)
PTV-T (CT, 0 Gy)
GTV-T (PET, 16 Gy) CTV-T (PET, 16 Gy) PTV-T (PET, 16 Gy)
GTV-TN (PET, 16 Gy) CTV-TN (PET, 16 Gy) PTV-TN (PET, 16 Gy)
GTV-N (MR, 16 Gy) CTV-N (MR, 16 Gy) PTV-N (MR, 16 Gy)
GTV-N (CT, 0 Gy)
CTV-N (CT, 0 Gy)
PTV-N (CT, 0 Gy)
“The Target Volume”
1978 ICRU29
1993 ICRU50
GTV
CTV
PTV
Organs at risk
Organs at risk
1999 ICRU62
GTV
CTV ITV PTV
OR PRV
2004 ICRU71
GTV-T
CTV-T (ITV) PTV-T
GTV-N
CTV-N
PTV-N
GTV-M
CTV-M
PTV-M
OAR PRV
Volumes
2007 ICRU78
2010 ICRU83
OAR PRV RVR
PTV-T
SV-1
(…)
PTV-T
SV-2
(…)
PTV-T
SV-3
(…)