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Definitions
Fokdal
•
GTVBT : high signal
intensity
•
HRCTV :
GTVBT + grey
zones in parametrial,
vagina and para-vagina
•
IRCTV :
10 mm margin to
HRCTV, crop out OAR
and applicator, add
margin based on clinical
exam and MRI at
diagnosis to ensure full
coverage to initial
tumour volume
Dimopoulos
•
GTVBT : macroscopic tumour
extension at the time of BT as
detected by clinical exam and
MRI (high signal intensity)
•
HRCTV :
clinically palpable
disease, residual disease as
seen on MRI and grey zones
plus circumference of entire
vagina at level of residual
tumour
•
IRCTV :
carries microscopic
tumour load and includes region
of initial tumour extension plus
remaining vagina due to
possible submuscoal multifocal
tumour spread