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The Scatter Search Based Algorithm for Beam Angle Optimization in Intensity-Modulated Radiation Therapy
Joint Authors
Pouladian, Majid
Ghanbarzadeh, Ali
Shabestani Monfared, Ali
Mahdavi, Seied Rabi
Source
Computational and Mathematical Methods in Medicine
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-06-03
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
This article introduces a new framework for beam angle optimization (BAO) in intensity-modulated radiation therapy (IMRT) using the Scatter Search Based Algorithm.
The potential benefits of plans employing the coplanar optimized beam sets are also examined.
In the proposed beam angle selection algorithm, the problem is solved in two steps.
Initially, the gantry angles are selected using the Scatter Search Based Algorithm, which is a global optimization method.
Then, for each beam configuration, the intensity profile is calculated by the conjugate gradient method to score each beam angle set chosen.
A simulated phantom case with obvious optimal beam angles was used to benchmark the validity of the presented algorithm.
Two clinical cases (TG-119 phantom and prostate cases) were examined to prepare a dose volume histogram (DVH) and determine the dose distribution to evaluate efficiency of the algorithm.
A clinical plan with the optimized beam configuration was compared with an equiangular plan to determine the efficiency of the proposed algorithm.
The BAO plans yielded significant improvements in the DVHs and dose distributions compared to the equispaced coplanar beams for each case.
The proposed algorithm showed its potential to effectively select the beam direction for IMRT inverse planning at different tumor sites.
American Psychological Association (APA)
Ghanbarzadeh, Ali& Pouladian, Majid& Shabestani Monfared, Ali& Mahdavi, Seied Rabi. 2018. The Scatter Search Based Algorithm for Beam Angle Optimization in Intensity-Modulated Radiation Therapy. Computational and Mathematical Methods in Medicine،Vol. 2018, no. 2018, pp.1-10.
https://search.emarefa.net/detail/BIM-1132018
Modern Language Association (MLA)
Ghanbarzadeh, Ali…[et al.]. The Scatter Search Based Algorithm for Beam Angle Optimization in Intensity-Modulated Radiation Therapy. Computational and Mathematical Methods in Medicine No. 2018 (2018), pp.1-10.
https://search.emarefa.net/detail/BIM-1132018
American Medical Association (AMA)
Ghanbarzadeh, Ali& Pouladian, Majid& Shabestani Monfared, Ali& Mahdavi, Seied Rabi. The Scatter Search Based Algorithm for Beam Angle Optimization in Intensity-Modulated Radiation Therapy. Computational and Mathematical Methods in Medicine. 2018. Vol. 2018, no. 2018, pp.1-10.
https://search.emarefa.net/detail/BIM-1132018
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1132018