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OR Group of Scotland - Join in!

Welcome to the OR Group of Scotland Society pages on which we’ll be posting comments, information, news of our events and activities, reports of meetings and other interesting features.

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Recent Blog Posts


Monday, 2 Apr 2018
John Lamb

Speaker: Professor Matthias Ehrgott, Department of Management Science, Lancaster University, UK
Time : 2PM, April 11th
Room: SW 204, Strathclyde Business School

 

Title: Generating deliverable treatment plans and beam angle optimisation in the presence of multiple objectives in radiotherapy treatment planning

Abstract: External radiation therapy is one of the major forms of treatment of cancer. Planning a radiation treatment for a patient involves making trade-offs between the main goals of radiotherapy, namely to irradiate the tumour according to some prescription to affect tumour control and to avoid damage to surrounding healthy tissue. This conflict permeates all aspects of treatment planning from the selection of beam angles to the optimisation of fluence maps to the sequencing of the gantry for treatment delivery. In this talk I will first describe a matheuristic approach to incorporate multi-objective fluence optimisation in the beam angle optimisation problem. The second part of the talk will cover a column generation approach to the multi-objective fluence map optimisation problem, which achieves a reduction of the number of apertures and total fluence required to deliver a Pareto-optimal treatment. 



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