Automatic learning-based selection of beam angles in radiation therapy of lung cancer

Guy Amit, Thomas G. Purdie, Alex Levinshtein, Andrew J. Hope, Patricia Lindsay, David A. Jaffray, Vladimir Pekar

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

5 Scopus citations

Abstract

The treatment of lung cancer using external beam radiation requires an optimal selection of the radiation beam directions to avoid unnecessarily treatment of normal healthy tissues. We introduce an automated beam selection method, based on learning the relations between beam angles and anatomical features. Using a large dataset of clinical plans, we train a random forest regressor to predict beam angle likelihood. We then use an optimization procedure that incorporates inter-beam dependencies and selects the treatment beams. We present validation results, demonstrating the equivalence of automatically-selected beams and the derived radiation therapy plans to the clinical, manually-planned, ground-truth. The proposed method may be a useful clinical tool for reducing the manual planning workload, while sustaining plan quality.

Original languageEnglish
Title of host publication2014 IEEE 11th International Symposium on Biomedical Imaging, ISBI 2014
PublisherInstitute of Electrical and Electronics Engineers
Pages230-233
Number of pages4
ISBN (Electronic)9781467319591
DOIs
StatePublished - 29 Jul 2014
Externally publishedYes
Event2014 IEEE 11th International Symposium on Biomedical Imaging, ISBI 2014 - Beijing, China
Duration: 29 Apr 20142 May 2014

Publication series

Name2014 IEEE 11th International Symposium on Biomedical Imaging, ISBI 2014

Conference

Conference2014 IEEE 11th International Symposium on Biomedical Imaging, ISBI 2014
Country/TerritoryChina
CityBeijing
Period29/04/142/05/14

Keywords

  • Machine learning
  • Optimization
  • Radiation therapy planning

ASJC Scopus subject areas

  • Biomedical Engineering
  • Radiology Nuclear Medicine and imaging

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