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Radiotherapy setup displacements in breast cancer patients: 3D surface imaging experience

2018-01Journal article Restricted access
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dc.contributor.authorSá, Ana Cravo
dc.contributor.authorFermento, Ana
dc.contributor.authorNeves, Dalila
dc.contributor.authorFerreira, Sara
dc.contributor.authorSilva, Teresa
dc.contributor.authorCoelho, Carina Marques
dc.contributor.authorVaandering, Aude
dc.contributor.authorRoma, Ana
dc.contributor.authorQuaresma, Sérgio
dc.contributor.authorBonnarens, Emmanuel
dc.date.accessioned2018-01-17T12:25:29Z
dc.date.available2018-01-17T12:25:29Z
dc.date.issued2018-01
dc.description.abstractAim - In this study, we intend to compare two different setup procedures for female breast cancer patients. Background - Imaging in radiotherapy provides a precise localization of a tumour, increasing the accuracy of the treatment delivery in breast cancer. Materials and methods - Twenty breast cancer patients who underwent whole breast radiotherapy (WBRT) were selected for this study. Patients were divided into two groups of ten. Group one (G1) was positioned by tattoos and then the patient positioning was adjusted with the aid of AlignRT (Vision RT, London, UK). In group two (G2), patients were positioned only by tattoos. For both groups, the first 15 fractions were analyzed, a daily kilovoltage (kV) cone beam computed tomography (CBCT) image was made and then the rotational and translational displacements and, posteriorly, the systematic (Σ) and random (σ) errors were analyzed. Results - The comparison of CBCT displacements for the two groups showed a statistically significant difference in the translational left-right (LR) direction (ρ = 0.03), considering that the procedure with AlignRT system has smaller lateral displacements. The results of systematic (Σ) and random (σ) errors showed that for translational displacements the group positioned only by tattoos (G2) demonstrated higher values of errors when compared with the group positioned with the aid of AlignRT (G1). Conclusions - AlignRT could help the positioning of breast cancer patients; however, it should be used with another imaging method.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationSá AC, Fermento A, Neves D, Ferreira S, Silva T, Coelho CM, et al. Radiotherapy setup displacements in breast cancer patients: 3D surface imaging experience. Rep Pract Oncol Radiother. 2018;23(1):61-7.pt_PT
dc.identifier.doi10.1016/j.rpor.2017.12.007pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.21/7930
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S1507136717301074pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/pt_PT
dc.subjectRadiotherapypt_PT
dc.subjectBreast cancerpt_PT
dc.subjectWhole breast radiotherapypt_PT
dc.subject3D surface imagingpt_PT
dc.subjectAlignRTpt_PT
dc.subjectCone beam computed tomographypt_PT
dc.titleRadiotherapy setup displacements in breast cancer patients: 3D surface imaging experiencept_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage67pt_PT
oaire.citation.issue1pt_PT
oaire.citation.startPage61pt_PT
oaire.citation.titleReports of Practical Oncology and Radiotherapypt_PT
oaire.citation.volume23pt_PT
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT

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