Imaging for early stage breast cancer

Dose profiles in EBRT and BT in a real clinical case (multiple beams and multiple sources)

100

90

80

IMRT1

70

BT

60

IMRT2

50

40

combination of lateral and longitudinal profiles

30

Realative dose (%)

20

~1/r

10

0

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Distance from target edge (cm)