SBRT2015

How about table rotations?

• Patient intrafraction motion and uncertainties, with IGRT corrections in between couch rotations:

Mean shifts: $

!

Vertical: -0.01 mm (SD 0.39 mm) Longitudinal: -0.05 mm (SD 0.47 mm) Lateral: 0.16 mm (SD 0.44 mm) Mean 3D of 0.89 mm (SD 0.35 mm)

$ $

Mean rotations: $

!

Vertical: -0.08°(SD 0.25°) Longitudinal: 0.09°(SD 0.29°) Lateral: -0.05°(SD 0.20°)

$ $

Gevaert et al. Radiother Oncol 2012 SBRT 2015 - D. Verellen

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