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IMRT vs IGBT
•
For IMRT CTV-PTV
margins
is needed, i.e. a larger
volume, compared to brachytherapy, has to be
treated.
•
D90 for IMRT was lower
compared to BT for most
of the patients.
•
The volumes receiving intermediate doses (>60Gy)
are much larger for IMRT.
•
The importance of
very high central doses
are most
likely of major importance for the excellent local
control obtained with brachytherapy.
Advanced BT is superior to IMRT