Gynae BT_Lucknow_2018

Irradiation of normal tissue

• Difference in irradiated body volume of 1000cm3 • Question of PTV margin – 5mm margin expands irradiated volume by 500cm3 – 10mm margin expands irradiated volume by 1000cm3 PTV margin 5mm PTV margin higher? Body V43 Bowel V15

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