Risk-adapted Optimization in Intensity Modulated Proton Therapy (IMPT) - Softcover

Pflugfelder, Daniel

Softcover

ISBN 10: 3836486091 ISBN 13: 9783836486095

Verlag: VDM Verlag Dr. Müller, 2008

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Reseña del editor:

Due to the pronounced dose gradients generated by proton beams, proton treatment plans can be very sensitive to treatment uncertainties. However in IMPT many different solutions of the inverse problem exist which result in dose distributions of comparable quality. This thesis investigates methods to exploit this degeneracy of solutions to generate treatment plans which are robust to uncertainties. To rate the sensitivity to uncertainties of individual beamlet dose distributions the heterogeneity number H was developed. It was shown that H correlates with the dose calculation error introduced by the commonly employed pencil beam algorithm as well as with the sensitivity to setup errors of individual beamlets. Finally, the "worst case optimization" was developed to account for uncertainties during the inverse treatment planning. This technique was applied to account for range uncertainties, setup errors and a combination of both uncertainties. The treatment plans generated with this new optimization method are much more robust to the respective uncertainties as conventional IMPT and even as conventional single-field proton treatment plans.

Biografía del autor:

Daniel Pflugfelder studied Physics at the University of Stuttgart and at the University of Missouri, St. Louis. He received his PhD from the University of Heidelberg in 2008. This book presents his PhD thesis which was carried out at the German Cancer Research Center (DKFZ).

Über diese Auflage

• Verlag: VDM Verlag Dr. Müller
• Erscheinungsdatum: 2008
• ISBN 10: 3836486091
• ISBN 13: 9783836486095
• Einband: Tapa blanda
• Auflage: 1
• Anzahl der Seiten: 100