Cervix BT - 2016

Compare the Position of the Most Exposed D xcc

Areas in EBRT and BT

4F-box

• In IMRT plans often the most exposed volume is not a relating agglomeration (cluster), but in the organ takes place sporadically • bladder : not the same volume receives the highest dose in IMRT than in 4F-box treatments • rectum : sometimes the close same division • sigmoid : always the close same IMRT BT OAR IMRT 4F bladder -1.6 1.4 So it is deserving to compute for OARs in BT d s planning in this way: they had received approximately the PD of the external beam treatment. p 0.03

2.6 0.0

>0.05

rectum sigmoid

2.9 5.2

0.0001 The dose of BT in the most exposed 2 ccm in IMRT and 4F plans [D EBRT-BT (% - PD)

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