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Advantage of beam angle optimization in head-and-neck IMRT: Patient specific analysis

2019-09Book part Restricted access
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dc.contributor.authorVentura, Tiago
dc.contributor.authorLopes, Maria do Carmo
dc.contributor.authorRocha, Humberto
dc.contributor.authorCosta Ferreira, Brígida
dc.contributor.authorDias, Joana
dc.date.accessioned2021-11-16T10:28:46Z
dc.date.available2021-11-16T10:28:46Z
dc.date.issued2019-09
dc.description.abstractRadiation therapy (RT) main purpose is to eliminate, in a controlled way, all tumor cells sparing as much as possible the normal tissues. Intensity Modulated Radiation Therapy (IMRT) is becoming the standard treatment technique in RT. Beam angle optimization (BAO) has potential to confer more quality to IMRT inverse planning process compared to manual trial and error approaches. In this study, the BAO advantages in head-and-neck patients are highlighted, using a patient specific analysis. Fluence optimization was done with Erasmus-iCycle multicriterial engine and BAO optimization was performed using two different algorithms: a combinatorial iterative algorithm and an algorithm based on a pattern search method. Plan assessment and comparison was performed with the graphical tool SPIDERplan. Among a set of forty studied nasopharynx cancer cases, three patients have been select for the specific analysis presented in this work. BAO presented plan quality improvements when beam angular optimized plans were compared with the equidistant beam angle solution and when plans based on non-coplanar beams geometries were compared with coplanar arrangements. Improvement in plan quality with a reduced number of beams was also achieved, in one case. For all cases, BAO generated plans with higher target coverage and better sparing of the normal tissuespt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationVentura, T., Lopes, M. d. C., Rocha, H., Ferreira, B. d. C., & Dias, J. (2019). Advantage of Beam Angle Optimization in Head-and-Neck IMRT: Patient Specific Analysis. In J. Henriques, N. Neves, & P. d. Carvalho (Eds.), XV Mediterranean Conference on Medical and Biological Engineering and Computing – MEDICON 2019 (Vol. 76). Springer. https://doi.org/https://doi.org/10.1007/978-3-030-31635-8_153pt_PT
dc.identifier.doi10.1007/978-3-030-31635-8_153pt_PT
dc.identifier.isbn978-3-030-31634-1
dc.identifier.urihttp://hdl.handle.net/10400.22/18872
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherSpringerpt_PT
dc.relation.publisherversionhttps://link.springer.com/chapter/10.1007/978-3-030-31635-8_153pt_PT
dc.subjectRadiation therapypt_PT
dc.subjectBeam angle optimizationpt_PT
dc.subjectPlan assessmentpt_PT
dc.subjectHead-and-neck cancerpt_PT
dc.titleAdvantage of beam angle optimization in head-and-neck IMRT: Patient specific analysispt_PT
dc.typebook part
dspace.entity.typePublication
oaire.citation.conferencePlaceCoimbra - Portugalpt_PT
oaire.citation.endPage1263pt_PT
oaire.citation.startPage1256pt_PT
oaire.citation.titleXV Mediterranean Conference on Medical and Biological Engineering and Computing – MEDICON 2019pt_PT
oaire.citation.volume76pt_PT
person.familyNameCosta Ferreira
person.givenNameBrigida
person.identifier1167997
person.identifier.ciencia-idA61B-E07B-84B3
person.identifier.orcid0000-0001-7988-7545
person.identifier.scopus-author-id14050253300
rcaap.rightsclosedAccesspt_PT
rcaap.typebookPartpt_PT
relation.isAuthorOfPublicationeac8b2c3-0ef3-48f5-a3c7-8ca796a098ae
relation.isAuthorOfPublication.latestForDiscoveryeac8b2c3-0ef3-48f5-a3c7-8ca796a098ae

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