APBI 2016

Breast dosimetry

WBRT 3D-CRT IBT

p*

p**

Ipsilateral V100

66 % 15 % 13 % <0,0001 0,0225 96 % 33 % 16 % <0,0001 <0,0001 99 % 50 % 25 % <0,0001 <0,0001

V75 V50

Contralateral V5

7 % 4 % - 6 % 3 % -

0,0435 0,0174

- -

D5

WBRT: whole breast radiotherapy, 3D-CRT: 3D conformal radiotherapy, IBT: interstitial brachyterapy, *WBRT vs. 3D-CRT, **3D-CRT vs. IBT