Examination of the effect of increasing the number of radiation beams on a radiation treatment plan

Steven M. Crooks, Andrei Pugachev, Christopher King, Lei Xing

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Within the confines of least-squares operations, it is possible to quantify the effect of the addition of treatment fields or beamlets to a treatment plan. Using linear algebra and eigenvalue perturbation theory, the effect of the increase in number of treatments is shown to be equivalent to adding a perturbation operator. The effect of adding additional fields will be negligible if the perturbation operator is small. The correspondence of this approach to an earlier work in beam-orientation optimization is also demonstrated. Results are presented for prostate, spinal and head and neck cases, and the connection to beam-orientation optimization is examined.

Original languageEnglish (US)
Pages (from-to)3485-3501
Number of pages17
JournalPhysics in Medicine and Biology
Volume47
Issue number19
DOIs
StatePublished - Oct 7 2002
Externally publishedYes

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Least-Squares Analysis
Prostate
Neck
Head
Radiation

ASJC Scopus subject areas

  • Radiological and Ultrasound Technology
  • Radiology Nuclear Medicine and imaging

Cite this

Examination of the effect of increasing the number of radiation beams on a radiation treatment plan. / Crooks, Steven M.; Pugachev, Andrei; King, Christopher; Xing, Lei.

In: Physics in Medicine and Biology, Vol. 47, No. 19, 07.10.2002, p. 3485-3501.

Research output: Contribution to journalArticle

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