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Anode heel effect attenuation in lumbar spine radiography: can the use of aluminium filters improve clinical practice of radiographers?

2020Journal article Open access
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dc.contributor.authorRibeiro, Luís Pedro
dc.contributor.authorAbrantes, António
dc.contributor.authorLesyuk, Oksana
dc.contributor.authorDores, Rúben
dc.contributor.authorSousa, Patrick
dc.contributor.authorRodrigues, Sónia
dc.contributor.authorAlmeida, Rui
dc.contributor.authorAzevedo, Kevin
dc.contributor.authorSoares, Joana
dc.contributor.authorAleixo, João
dc.date.accessioned2022-07-08T15:38:14Z
dc.date.available2022-07-08T15:38:14Z
dc.date.issued2020
dc.description.abstractPurpose: The aim of this study was to design an aluminiumbased fi lter to reduce the anode heel eff ect in lumbar spine radiographs. Methods: Initially, lumbar spine examinations were observed in a public imaging department to determine standard exposure parameters. Then, the characterization of the anode heel eff ect was made using the Unfors Xi R/F detector and, based on the data collected, aluminium fi lters were designed with a wedge shape and thicknesses ranging from 0.1 to 4.0 mm. The assessment of the entrance skin dose (ESD) reduction was performed on the anthropomorphic phantom with and without fi lters, using the universal dosimeter UNIDOS E equipped with an ionization chamber. Finally, the image quality assessment was performed with the Pehamed Phantom Digrad A+K and image quality surveys were applied to radiographers and radiologists. Results and Discussion: Uniformity of the beam was achieved, especially with fi lter number 2, which presents a signifi cant variation of 9% between the cathodic and anodic side. This fi lter contributes to ESD reduction of 35% and 36% for AP and lateral projection, respectively. Also, according to radiographers and radiologists, it improves the image quality of lumbar spine radiography. Conclusion: The use of aluminium fi lters can be advantageous in the clinical practice of radiographers when performing lumbar spine radiographs since it allows the standardization of the anode heel eff ect, reduces the radiation dose to the patient and does not compromise image quality.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.47724/MIRTJ.2020.i02.a003pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.1/17944
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectAnode heel effectpt_PT
dc.subjectAluminium filterspt_PT
dc.subjectImage qualitypt_PT
dc.subjectRadiation protectionpt_PT
dc.subjectRadiographerspt_PT
dc.subjectEntrance skin dosept_PT
dc.titleAnode heel effect attenuation in lumbar spine radiography: can the use of aluminium filters improve clinical practice of radiographers?pt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage26pt_PT
oaire.citation.issue2pt_PT
oaire.citation.startPage19pt_PT
oaire.citation.titleMedical Imaging and Radiotherapy Journalpt_PT
oaire.citation.volume37pt_PT
person.familyNameRibeiro
person.familyNameCaldeira Lagem Abrantes
person.familyNameLesyuk
person.familyNamedo Espírito Santo Rodrigues
person.familyNameAlmeida
person.givenNameLuís Pedro
person.givenNameAntónio Fernando
person.givenNameOksana
person.givenNameSónia Isabel
person.givenNameRui
person.identifier2176242
person.identifier.ciencia-idC815-8A07-1950
person.identifier.ciencia-idE514-87C6-9772
person.identifier.ciencia-id1314-EB17-CA5C
person.identifier.ciencia-idF615-E60D-9A5C
person.identifier.ciencia-id0113-F406-B03C
person.identifier.ciencia-id3F12-ED24-173C
person.identifier.orcid0000-0002-6967-0534
person.identifier.orcid0000-0002-7792-678X
person.identifier.orcid0000-0002-7226-8845
person.identifier.orcid0000-0002-9431-1402
person.identifier.orcid0000-0001-7524-9669
person.identifier.ridA-6697-2016
person.identifier.scopus-author-id58401765500
person.identifier.scopus-author-id55556024200
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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