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