1003 / 1674
RT technique
External beam, forward planned IMRT
Planning CT prior to randomization
CTV partial breast is tumour bed + 15 mm
PTV is CTV + 5-8 mm depending on institution and fixation
40 Gy / 15 fr, 2.67 Gy per fr, 5 per week
Dose distribution 95-105%
V17Gy heart < 10%
LADCA max point dose 17 Gy
V17Gy ipsilat lung < 25%
V40Gy whole breast max 50% if partial breast RT