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Radiation Oncology

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Open Access 01-12-2008 | Research

Motion compensation with a scanned ion beam: a technical feasibility study

Authors: Sven Oliver Grözinger, Christoph Bert, Thomas Haberer, Gerhard Kraft, Eike Rietzel

Published in: Radiation Oncology | Issue 1/2008

Abstract

Background

Intrafractional motion results in local over- and under-dosage in particle therapy with a scanned beam. Scanned beam delivery offers the possibility to compensate target motion by tracking with the treatment beam.

Methods

Lateral motion components were compensated directly with the beam scanning system by adapting nominal beam positions according to the target motion. Longitudinal motion compensation to mitigate motion induced range changes was performed with a dedicated wedge system that adjusts effective particle energies at isocenter.

Results

Lateral compensation performance was better than 1% for a homogeneous dose distribution when comparing irradiations of a stationary radiographic film and a moving film using motion compensation. The accuracy of longitudinal range compensation was well below 1 mm.

Conclusion

Motion compensation with scanned particle beams is technically feasible with high precision.

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Bert C, Rietzel E: 4D treatment planning for scanned ion beams. Radiat Oncol 2007., 2:

Title: Motion compensation with a scanned ion beam: a technical feasibility study
Authors: Sven Oliver Grözinger
Christoph Bert
Thomas Haberer
Gerhard Kraft
Eike Rietzel
Publication date: 01-12-2008
Publisher: BioMed Central
Published in: Radiation Oncology / Issue 1/2008
Electronic ISSN: 1748-717X
DOI: https://doi.org/10.1186/1748-717X-3-34

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Motion compensation with a scanned ion beam: a technical feasibility study

Abstract

Background

Methods

Results

Conclusion

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Background

Methods

Results

Conclusion

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