Change search
ReferencesLink to record
Permanent link

Direct link
Interactive Multiobjective Optimization for Anatomy based Three-Dimensinal HDR Brachytherapy
Dept. of Mathematical Information Technology, University of Jyväskylä.
Department of Physics and Mathematics, University of Eastern Finland, Kuopio.
(Department of Oncology, Kuopio University Hospital)
Department of Oncology, Kuopio University Hospital.
2010 (English)In: Physics in Medicine and Biology, ISSN 0031-9155, E-ISSN 1361-6560, Vol. 55, no 16, 4703-4719 p.Article in journal (Refereed) Published
Abstract [en]

In this paper, we present an anatomy-based three-dimensional dose optimization approach for HDR brachytherapy using interactive multiobjective optimization (IMOO). In brachytherapy, the goals are to irradiate a tumor without causing damage to healthy tissue. These goals are often conflicting, i.e. when one target is optimized the other will suffer, and the solution is a compromise between them. IMOO is capable of handling multiple and strongly conflicting objectives in a convenient way. With the IMOO approach, a treatment planner’s knowledge is used to direct the optimization process. Thus, the weaknesses of widely used optimization techniques (e.g. defining weights, computational burden and trial-and-error planning) can be avoided, planning times can be shortened and the number of solutions to be calculated is small. Further, plan quality can be improved by finding advantageous trade-offs between the solutions. In addition, our approach offers an easy way to navigate among the obtained Pareto optimal solutions (i.e. different treatment plans). When considering a simulation model of clinical 3D HDR brachytherapy, the number of variables is significantly smaller compared to IMRT, for example. Thus, when solving the model, the CPU time is relatively short. This makes it possible to exploit IMOO to solve a 3D HDR brachytherapy optimization problem. To demonstrate the advantages of IMOO, two clinical examples of optimizing a gynecologic cervix cancer treatment plan are presented.

Place, publisher, year, edition, pages
Institute of Physics and Engineering in Medicine, 2010. Vol. 55, no 16, 4703-4719 p.
National Category
URN: urn:nbn:se:kth:diva-73958DOI: 10.1088/0031-9155/55/16/006ISI: 000280562100019ScopusID: 2-s2.0-78149301297OAI: diva2:489113
QC 20120210Available from: 2012-02-10 Created: 2012-02-02 Last updated: 2012-02-10Bibliographically approved

Open Access in DiVA

fulltext(1046 kB)266 downloads
File information
File name FULLTEXT01.pdfFile size 1046 kBChecksum SHA-512
Type fulltextMimetype application/pdf

Other links

Publisher's full textScopusIOPScience

Search in DiVA

By author/editor
Miettinen, Kaisa
In the same journal
Physics in Medicine and Biology

Search outside of DiVA

GoogleGoogle Scholar
Total: 266 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 25 hits
ReferencesLink to record
Permanent link

Direct link