METHODS
IMRT plans created in tomotherapy treatment plannin stations
of the previously treated patients using Prowess Panther DAO
(V5.01, Prowess Inc., USA) planning system were compared.
The prescription dose of 36Gy was delivered in 20 fractions to
the target volume planned. The optimization was performed
so as to deliver at least the 95% of the predetermined dose
(V95%) to the total volume of each PTV. DHI (dose homogeneity
index) values of all planesare comparable.
RESULTS
Although a significant difference was not observed between
planning systems as for conformity indices tomotherapy has
a relatively better conformity index is relatively better. Whole
body integral dose was found to be much higher in the tomotherapy
planning.
CONCLUSION
Although tomoterapy IMRT plan is easy to perform when
compared with eclipse, and prowess IMRT plans, treatment
time is longer. Prolonged radiation time in tomotherapy can
induce intrafraction motion.
Keywords: IMRT; craniospinal; tomotherapy
