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Imaging-based vs. pathology-based GTV-T
Daisne et al.
Radiology
2004;233:93-100.
FDG-PET (gradient-based autosegmentation)
Median GTV (cm3)
Δ (%)
Microscopic
specimen
12.6
-
CT
20.8
+65
MR
23.8
+89
FDG-PET
16.3
+29
• GTV-T (FDG-PET) is smallest and closest to the “true” GTV
followed by CT and MR.