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Inter + Intrafraction management
on Conventional LINAC
• Dual MV/kV imaging
• Quick extraction of
markers
• Automated correction by
couch
• Residual error < 1 mm in
< 1 min added treatment
time
• Also compensating intra-
fraction motion
Mutanga TF et al. Stereographic targeting in
prostate radiotherapy: speed and precision by
daily automatic positioning corrections using
kilovoltage/megavoltage image pairs. IJROBP
2008