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ICRU Guidelines (ICRU50): volume
definition
•
Volumes defined prior/ during treatment planning:
➢
Gross Tumor Volume (GTV)
➢
Clinical Target Volume (CTV)
➢
Planning Target Volume (PTV)
➢
Organs At Risk (OAR)
➢
Treated Volume
➢
Irradiated Volume
•
Volumes might be redefined during treatment for adaptive RT