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Gonad dose assessment of patients undergoing pelvic radiotherapy

2025-06Journal article Open access
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datacite.subject.sdg03:Saúde de Qualidade
dc.contributor.authorRibeiro, Daniela
dc.contributor.authorSá, Ana Cravo
dc.contributor.authorCarolino, Elisabete
dc.contributor.authorMartins, Leonor Santos
dc.contributor.authorBorrego, Margarida
dc.date.accessioned2025-09-02T11:27:18Z
dc.date.available2025-09-02T11:27:18Z
dc.date.issued2025-06
dc.description.abstractIntroduction: Radiotherapy can impact patients’ reproductive organs and fertility. This study aims (i) to assess whether the doses to the gonads of 70 patients met the tolerance doses used in radiotherapy planning; (ii) to compare Three-Dimensional Conformal Radiotherapy (3DCRT) with Volumetric Modulated Arc Therapy (VMAT) techniques; and (iii) to verify if ovarian transposition reduces the dose to the ovaries. Methods: A retrospective analysis of 70 patients aged 45 or under who underwent pelvic radiotherapy between 2014 and 2023 in a radiotherapy department was carried out. The dose constraints considered were derived from the Dose-Volume Constraints for Organs at Risk in Radiotherapy project. Results: The average number of children of all the patients in the study was 1.25, and the standard deviation was 1.40. No statistically significant differences were detected regarding the doses to the left and right gonads between 3DCRT and VMAT (p > 0.05). There were statistically significant differences between female patients who underwent ovarian transposition and those who did not undergo ovarian transposition regarding the maximum and median doses in both right and left ovaries (p < 0.05), with a dose reduction that could reduce doses by an average of up to 39 Gy. Conclusions: In the total sample, 58.6% of patients were treated with VMAT, only 18.6% met the maximum dose limits, and 22.9% met the average dose constraints. Only five women underwent ovarian transposition, which proved effective in meeting dose constraints and significantly reducing the dose to the ovaries.eng
dc.identifier.citationRibeiro D, Sá AC, Carolino E, Martins LS, Borrego M. Gonad dose assessment of patients undergoing pelvic radiotherapy. Appl Sci. 2025;15(13):7000.
dc.identifier.doi10.3390/app15137000
dc.identifier.issn2076-3417
dc.identifier.urihttp://hdl.handle.net/10400.21/22089
dc.language.isoeng
dc.peerreviewedyes
dc.publisherMDPI
dc.relation.hasversionhttps://www.mdpi.com/2076-3417/15/13/7000
dc.relation.ispartofApplied Sciences
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectRadiotherapy
dc.subjectGonad dose
dc.subjectOvarian transposition
dc.subjectPelvic radiotherapy
dc.titleGonad dose assessment of patients undergoing pelvic radiotherapyeng
dc.typejournal article
dspace.entity.typePublication
oaire.citation.issue13
oaire.citation.startPage7000
oaire.citation.titleApplied Sciences
oaire.citation.volume15
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameCarolino
person.givenNameElisabete
person.identifier.orcid0000-0003-4165-7052
relation.isAuthorOfPublication31223136-1531-4060-aec7-4d3fc8529916
relation.isAuthorOfPublication.latestForDiscovery31223136-1531-4060-aec7-4d3fc8529916

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