IMRT 2018
Static or dynamic delivery
Step-and-shoot IMRT
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– Multitude of low-weighted beamlets – Quick ramp-up of accelerator performance required
• Sliding-window IMRT and VMAT – Dose rate, MLC motion and gantry motion need to be perfectly synchronised – Influence of gravity on MLCs varies with gantry angle – MLC QA, e.g. picket-fence test – Analysis of MLC log-files • Standard IMRT/VMAT plan measured regularly on phantom/array
06/06/2018
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