Robotic Radiosurgery with Beams of Adaptable Shapes

Type of publication:  Artikel in einem Konferenzbericht
Buchtitel: Proceedings of the first international conference on Computer Vision, Virtual Reality and Robotics in Medicine ({CVRMed'95})
Serie: Lecture Notes in Computer Science
Band: 905
Jahr: 1995
Monat: apr 3-6
Seiten: 138--149
Verlag: Springer
Ort: Nice, France
Abriss: In radiosurgery, a moving beam of radiation acts as an ablative surgical instrument. Conventional systems for radiosurgery use a cylindrical radiation beam of fixed cross-section. The radiation source can only be moved along simple standardized paths. A new radiosurgical system based on a six degree-of-freedom robotic arm has been developed to overcome limitations of conventional systems. We address the following question: Can dose distributions generated by robotic radiosurgery be improved by using non-cylindrical radiation beams of adaptable cross-section? Geometric methods for planning the shape of the beam in addition to planning beam motion are developed. Design criteria considered in this context are: treatment time, radiation penumbra as well as transparency of interactive treatment planning. An experimental evaluation compares distributions generated with our new radiosurgical system using cylindrical beams to distributions generated with beams of adaptable shapes.
Nutzerfelder: file={sta_95.pdf:sta_95.pdf:PDF}
Autoren: Schweikard, Achim
Tombropoulos, Rhea
Adler, Jr., John R.
Herausgeber: Ayache, Nicholas