Combined mathematical programming and heuristics for a radiotherapy pre‐treatment scheduling problem

Combined mathematical programming and heuristics for a radiotherapy pre‐treatment scheduling problem

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Article ID: iaor20123924
Volume: 15
Issue: 3
Start Page Number: 333
End Page Number: 346
Publication Date: Jun 2012
Journal: Journal of Scheduling
Authors: ,
Keywords: scheduling, programming: multiple criteria, programming: mathematical, heuristics
Abstract:

Demand for radiotherapy treatment services has increased due to higher cancer incidence, ageing population, and a larger number of prescribed radiotherapy fractions. This higher demand can, in turn, produce longer waiting times for radiotherapy treatment. We introduce a real‐world radiotherapy pre‐treatment scheduling problem at a hospital in the UK. This scheduling problem is modelled as an optimisation problem with multiple objectives. The objectives are hierarchical, thus the solution approach is based on solving a series of single‐objective optimisation scheduling problems. Each of these problems is formulated as a mathematical programming model. Dispatching rules were introduced to produce an initial solution for the mathematical programming model. Their performance is compared to the mathematical programming approach.

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