616-617 / 2001
Clinical Target Volume
CTV
Is a
tissue volume
that contains
the GTV and/or subclinical malignant disease
at a certain probability level.
The CTV is a clinical-anatomical concept. Delineation of the CTV is based on
th b bilit f
f b li i l
li
t ll
t id th GTV d
e pro a y o presence o su c n ca ma gnan ce s ou s e e
an
thus requires the interpretation of data and some judgment of the radiation
oncologist.