738 / 1481
6)
CTV DELINEATION FOR
3D-BRACHYTHERAPY
GTV-T
init
GTV-T
res
Macroscopic tumor extension at diagnosis
, proven by histology as
detected by clinical examination (GTV-T
clin
) and as visualized as a high-signal
intensity mass using T2-weighted MRI (GTV-T
MRI
).
Remaining tumor at the time of brachytherapy application
, determined
using the same clinical or imaging investigations, after treatment assumed
sufficient to control microscopic disease.
Can have undergone inflammatory reactions with edema and fibrotic remodeling (“
gray zones
”),
might or might not contain macroscopic or microscopic tumor.