Minimum-support solutions for radiotherapy planning

Minimum-support solutions for radiotherapy planning

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Article ID: iaor20033216
Country: Netherlands
Volume: 119
Issue: 1
Start Page Number: 229
End Page Number: 245
Publication Date: Mar 2003
Journal: Annals of Operations Research
Authors: ,
Keywords: programming: linear
Abstract:

Computer-generated plans for radiation treatment sometimes involve an unnecessarily large number of gantry angles. Such plans are time consuming and expensive to administer because each distinct angle causes a delay while the gantry is repositioned. To address this issue, we consider an optimization model that generates minimum-support solutions to the treatment planning problem – that is, solutions involving a minimum number of gantry angles. This model is a polyhedral concave program, which is solved using a successive linearization algorithm based on work by Mangasarian.

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