Forschungs- und Lehreinheit
Bildverstehen und Wissensbasierte Systeme
Forschungsgruppe Kognitive Systeme
FORWISS
Overview
In radiosurgery a moving beam of radiation is used as an ablative
surgical instrument to destroy brain tumors. Classical radiosurgery systems
rely on rigid skeletal fixation of the anatomic region to be treated.
This fixation procedure is very painful for the patient and limits
radiosurgical procedures to brain lesions. Furthermore, due to the
necessity of rigid fixation, radiosurgical treatment with classical
systems cannot be fractionated. A new camera-guided system capable
of tracking patient motion during treatment has been built to overcome
these problems.
Robotic Radiosurgery System
Treatment Planning
Dose is accumulated in the tumor by cross-firing from many
directions. To plan a treatment appropriate beam directions and beam
intensities for treating the given tumor must be found.
Sample case (Stanford Medical Center). (a) Axial CT with tumor
delineated in black (b) 3D representation of tumor delineation (c)
Isodose surface (d) Isodose surface overlaid on tumor reconstruction.
