IMRT

Frameless: immobilization intrafraction

Analysis of intrafraction motion during treatment (± 4.6 min.):

2

Mean 3D of 0.51 mm (SD 0.13 mm)

1,5

1

Vertical Shift [mm] Longitudinal shift [mm] Lateral shift [mm] Vertical rotation [°] Longitudinal rotation [°] Lateral rotation [°]

0,5

0

-0,5

Intrafraction motion

-1

-1,5

Radiotherapy and Oncology 2013;108:114–117

55