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Brachytherapy planning and navigation
The treatment of tumours in the frontal or lateral skull-base with
interstitial brachytherapy requires high targeting accuracy of the
needles to avoid harming vital anatomical structures. To enable safe
placement of the needles in this area, we developed an image-guided
planning and navigation system for brachytherapy. The system consists
of a two-stage positioning mechanism, an infrared tracking camera
(Optotrak), a non-invasive head-fixation frame with a vacuum cushion,
and a computed tomography (CT) based computer-aided planning and
navigation software, which provides intuitive real-time visual
guidance for the fine-adjustment of the mechanical degrees of
freedom.
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