IMRT

Invasive frame-based: targeting

l Novalis system: g Phantom posi,oning: frame-­‐based vs. image-­‐guided g Pa,ent set-­‐up: frame-­‐based vs. image-­‐guided

• Flex in the ring fixation system when attached to the couch • Torque due to placement of the localizer device on the ring

Int. J. Radiation Oncology Biol. Phys. 2009;74(3):913-919

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