Target Volume Determination 2015

Is IGRT suggorate for margin reduction?

Group 1 (n=25) Group 2 (n=25)

LR margin

3 mm

6 mm

AP margin

5 mm

6 mm

SI margin

4 mm

6 mm

FFBF @ 5 years

74%

96%

P=0.04

Engels, Radiother Oncol, 2014