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Accuracy: Frame-based versus IGRT-

frameless

40

Overall 3D accuracy:

1.20 mm SD 0.66 mm (frame-based)

0.88 mm SD 0.42 mm (frameless)

-1.00

-0.50

0.00

0.50

1.00

1.50

Longitudinal

Lateral

Vertical

Average shift (mm)

Frame-based

Frameless

Gevaert

et al.

Int J Radiat Oncol Biol Phys 2012

SBRT 2015 - D. Verellen