1221 / 1481
GTV definition: imaging
CT scan
PET & PET CT
+
information from other imaging modalities
–
Esophagography:
intra-luminal tumor, early tumors, CC extension, under-estimates GTV,
no co-registration
, 2D treatment
–
EUS & EUS-FNA
:
T wall infiltration; adjacent N+,
no co-registration
–
Endoscopy
(esophagoscopy, bronchoscopy):
T extension, bronchus invasion,
no co-registration
Fiore D – Radiol Med – 2006
Plukker JThM – Best Pract Res Clin Gastroenterol – 2006
GTV delineation