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Tumor tracking: Cyberknife
•
Advantages
:
Ø
High dynamic and geometric
accuracy
Ø
Markerless tracking available for
specific cases
•
Drawbacks
:
Ø
Small circular field sizes
(new version comes with MLC)
Ø
Long treatment times
Ø
Posterior beams not possible
Ø
Volumetric imaging not supported
Ø
Direct verification of beam not
supported.
SBRT 2016 - D. Verellen
86
-Light and compact linac ( < 300kg )
-Mounted on a robot