473 / 1481
Imaging-based vs. pathology-based GTV-T
Ligtenberg et al.
Radiat Oncol
2017;123:63-70.
Mean GTV (cm3)
Δ (%)
Microscopic
specimen
15.7
-
CT
25.6
+63
MR
21.4
+36
FDG-PET
21.1
+34
• GTV-T (FDG-PET) is smallest and closest to the “true” GTV
followed by MR and CT.