Optimization of cone beam computed tomography for the assessment of alterations of the maxillary sinuses
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Research, Society and Development |
Texto Completo: | https://rsdjournal.org/index.php/rsd/article/view/20025 |
Resumo: | Objective: To test the standard protocols of a CBCT unit in order to find lower-dose alternatives with diagnostically acceptable image quality for the maxillary sinuses visualization. Study design: An observational study was performed. Two dry skulls were used to simulate four conditions of the maxillary sinuses: normality, mucous retention pseudocyst, membrane thickening and bone graft. Cone beam computed tomography scans were obtained with an i-CAT classic unit using different acquisition protocols and a box of polystyrene to simulate soft tissue attenuation. All the protocols were established by the manufacturer, combining different energy parameters, fields of view and voxel sizes. Multiplanar reconstructions were presented to three Oral Radiologists through blind and randomized distribution. The specialists judged general image quality, sharpness, contrast, and the presence of noise and artifacts based on a 4-points scale. Results: Protocols with higher energy parameters had significant association with higher scores for general quality, sharpness and contrast (p<0.05). Protocols with intermediate level of radiation dose had also significant association with good and excellent image quality; for the presence of noise and artifacts the images were rated acceptable. Conclusion: i-CAT default protocols with lower dose of radiation were able to deliver acceptable image quality for the visualization of the maxillary sinuses. |
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Optimization of cone beam computed tomography for the assessment of alterations of the maxillary sinusesOptimización de la tomografía computarizada de haz cónico para la evaluación de alteraciones de los senos maxilaresOtimização em tomografia computadorizada para a avaliação das alterações dos seios maxilaresOptimizationImage qualityComputed tomographyMaxillary sinuses.OptimizaciónRadiologíaTomografía computarizadaSenos maxilares.OptimizaçãoRadiologiaTomografia computadorizaSeios maxilares.Objective: To test the standard protocols of a CBCT unit in order to find lower-dose alternatives with diagnostically acceptable image quality for the maxillary sinuses visualization. Study design: An observational study was performed. Two dry skulls were used to simulate four conditions of the maxillary sinuses: normality, mucous retention pseudocyst, membrane thickening and bone graft. Cone beam computed tomography scans were obtained with an i-CAT classic unit using different acquisition protocols and a box of polystyrene to simulate soft tissue attenuation. All the protocols were established by the manufacturer, combining different energy parameters, fields of view and voxel sizes. Multiplanar reconstructions were presented to three Oral Radiologists through blind and randomized distribution. The specialists judged general image quality, sharpness, contrast, and the presence of noise and artifacts based on a 4-points scale. Results: Protocols with higher energy parameters had significant association with higher scores for general quality, sharpness and contrast (p<0.05). Protocols with intermediate level of radiation dose had also significant association with good and excellent image quality; for the presence of noise and artifacts the images were rated acceptable. Conclusion: i-CAT default protocols with lower dose of radiation were able to deliver acceptable image quality for the visualization of the maxillary sinuses.Objetivo: Probar protocolos estándar en tomografía computarizada de haz cónico (CBCT) para verificar la existencia de protocolos alternativos de baja dosis y calidad de imagen diagnósticamente aceptable para la visualización de los senos maxilares. Metodología: Se desarrolló un estudio observacional. Se utilizaron dos cráneos humanos para condiciones similares a las siguientes: aspecto de normalidad, fenómeno de retención de moco, engrosamiento de la membrana sinusal e injerto óseo. Se obtuvieron tomografías computarizadas de haz cónico con una unidad clásica i-CAT utilizando diferentes protocolos de adquisición y una caja de poliestireno para simular la atenuación de tejidos blandos. Todos los protocolos fueron establecidos por el fabricante, combinando diferentes parámetros de energía, campos de visión y tamaños de vóxel. Las reconstrucciones multiplanares se presentaron a tres radiólogos orales mediante distribución ciega y aleatorizado. Los especialistas juzgaron la calidad general de la imagen, la nitidez, el contraste y la presencia de ruido y artefactos en función de una escala de 4 puntos. Resultados: Los protocolos con parámetros de energía más altos tuvieron una asociación significativa con puntuaciones más altas para la calidad general, la nitidez y el contraste (p<0,05). Los protocolos con nivel intermedio de dosis de radiación también tuvieron una asociación significativa con una buena y excelente calidad de imagen; para la presencia de ruido y artefactos, las imágenes fueron calificadas como aceptables. Conclusión: los protocolos predeterminados de i-CAT con dosis más bajas de radiación fueron capaces de ofrecer una calidad de imagen aceptable para la visualización de los senos maxilares.Objetivo: Testar protocolos padrão em tomografia computadorizada de feixe cônico (TCFC) para verificar a existência de protocolos alternativos de baixa dose e qualidade de imagem aceitável para a visualização dos seios maxilares. Metodologia: Um estudo observacional foi realizado. Dois crânios humanos foram utilizados para simular as seguintes condições: aspecto de normalidade, fenômeno de retenção de muco, o espessamento da membrana sinusal, e enxerto ósseo. Imagens de TCFC foram obtidas com o aparelho i-CAT classic utilizando diferentes protocolos de aquisição de imagem e uma caixa de poliestireno para simular a atenuação produzida pelos tecidos moles. Todos os protocolos foram preestabelecidos pelo fabricante, combinando diferentes parâmetros energéticos, campo de visão e tamanho do voxel. Reconstruções multiplanares foram apresentadas a três Cirurgiões-dentistas radiologistas num processo cego e randomizado. Os especialistas avaliaram a qualidade geral das imagens, sua nitidez, contraste e presença de ruídos e artefatos tendo como base uma escala de 4 níveis. Resultados: Protocolos com altos parâmetros energéticos tiveram associação significativa com valores elevados para qualidade, nitidez e contraste (p < 0.05). Protocolos como níveis intermediários de dose de radiação tiveram associação com boa e excelente qualidade de imagem. Para a presença de ruído e artefatos, as imagens foram julgadas como aceitáveis. Conclusão: Protocolos i-CAT preestabelecidos, de baixa dose de radiação, são capazes de produzir imagens com qualidade aceitável para a visualização dos seios maxilares.Research, Society and Development2021-09-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://rsdjournal.org/index.php/rsd/article/view/2002510.33448/rsd-v10i11.20025Research, Society and Development; Vol. 10 No. 11; e456101120025Research, Society and Development; Vol. 10 Núm. 11; e456101120025Research, Society and Development; v. 10 n. 11; e4561011200252525-3409reponame:Research, Society and Developmentinstname:Universidade Federal de Itajubá (UNIFEI)instacron:UNIFEIenghttps://rsdjournal.org/index.php/rsd/article/view/20025/17723Copyright (c) 2021 Bárbara Cristina Anrain; Ademir Franco; Danieli Moura Brasil; José Luiz Cintra Junqueira; Luciana Butini de Oliveira; Anne Caroline Costa Oenninghttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessAnrain, Bárbara CristinaFranco, AdemirBrasil, Danieli MouraJunqueira, José Luiz Cintra Oliveira, Luciana Butini deOenning, Anne Caroline Costa2021-10-23T19:01:11Zoai:ojs.pkp.sfu.ca:article/20025Revistahttps://rsdjournal.org/index.php/rsd/indexPUBhttps://rsdjournal.org/index.php/rsd/oairsd.articles@gmail.com2525-34092525-3409opendoar:2024-01-17T09:39:47.137671Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)false |
dc.title.none.fl_str_mv |
Optimization of cone beam computed tomography for the assessment of alterations of the maxillary sinuses Optimización de la tomografía computarizada de haz cónico para la evaluación de alteraciones de los senos maxilares Otimização em tomografia computadorizada para a avaliação das alterações dos seios maxilares |
title |
Optimization of cone beam computed tomography for the assessment of alterations of the maxillary sinuses |
spellingShingle |
Optimization of cone beam computed tomography for the assessment of alterations of the maxillary sinuses Anrain, Bárbara Cristina Optimization Image quality Computed tomography Maxillary sinuses. Optimización Radiología Tomografía computarizada Senos maxilares. Optimização Radiologia Tomografia computadoriza Seios maxilares. |
title_short |
Optimization of cone beam computed tomography for the assessment of alterations of the maxillary sinuses |
title_full |
Optimization of cone beam computed tomography for the assessment of alterations of the maxillary sinuses |
title_fullStr |
Optimization of cone beam computed tomography for the assessment of alterations of the maxillary sinuses |
title_full_unstemmed |
Optimization of cone beam computed tomography for the assessment of alterations of the maxillary sinuses |
title_sort |
Optimization of cone beam computed tomography for the assessment of alterations of the maxillary sinuses |
author |
Anrain, Bárbara Cristina |
author_facet |
Anrain, Bárbara Cristina Franco, Ademir Brasil, Danieli Moura Junqueira, José Luiz Cintra Oliveira, Luciana Butini de Oenning, Anne Caroline Costa |
author_role |
author |
author2 |
Franco, Ademir Brasil, Danieli Moura Junqueira, José Luiz Cintra Oliveira, Luciana Butini de Oenning, Anne Caroline Costa |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Anrain, Bárbara Cristina Franco, Ademir Brasil, Danieli Moura Junqueira, José Luiz Cintra Oliveira, Luciana Butini de Oenning, Anne Caroline Costa |
dc.subject.por.fl_str_mv |
Optimization Image quality Computed tomography Maxillary sinuses. Optimización Radiología Tomografía computarizada Senos maxilares. Optimização Radiologia Tomografia computadoriza Seios maxilares. |
topic |
Optimization Image quality Computed tomography Maxillary sinuses. Optimización Radiología Tomografía computarizada Senos maxilares. Optimização Radiologia Tomografia computadoriza Seios maxilares. |
description |
Objective: To test the standard protocols of a CBCT unit in order to find lower-dose alternatives with diagnostically acceptable image quality for the maxillary sinuses visualization. Study design: An observational study was performed. Two dry skulls were used to simulate four conditions of the maxillary sinuses: normality, mucous retention pseudocyst, membrane thickening and bone graft. Cone beam computed tomography scans were obtained with an i-CAT classic unit using different acquisition protocols and a box of polystyrene to simulate soft tissue attenuation. All the protocols were established by the manufacturer, combining different energy parameters, fields of view and voxel sizes. Multiplanar reconstructions were presented to three Oral Radiologists through blind and randomized distribution. The specialists judged general image quality, sharpness, contrast, and the presence of noise and artifacts based on a 4-points scale. Results: Protocols with higher energy parameters had significant association with higher scores for general quality, sharpness and contrast (p<0.05). Protocols with intermediate level of radiation dose had also significant association with good and excellent image quality; for the presence of noise and artifacts the images were rated acceptable. Conclusion: i-CAT default protocols with lower dose of radiation were able to deliver acceptable image quality for the visualization of the maxillary sinuses. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-09-06 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://rsdjournal.org/index.php/rsd/article/view/20025 10.33448/rsd-v10i11.20025 |
url |
https://rsdjournal.org/index.php/rsd/article/view/20025 |
identifier_str_mv |
10.33448/rsd-v10i11.20025 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://rsdjournal.org/index.php/rsd/article/view/20025/17723 |
dc.rights.driver.fl_str_mv |
https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Research, Society and Development |
publisher.none.fl_str_mv |
Research, Society and Development |
dc.source.none.fl_str_mv |
Research, Society and Development; Vol. 10 No. 11; e456101120025 Research, Society and Development; Vol. 10 Núm. 11; e456101120025 Research, Society and Development; v. 10 n. 11; e456101120025 2525-3409 reponame:Research, Society and Development instname:Universidade Federal de Itajubá (UNIFEI) instacron:UNIFEI |
instname_str |
Universidade Federal de Itajubá (UNIFEI) |
instacron_str |
UNIFEI |
institution |
UNIFEI |
reponame_str |
Research, Society and Development |
collection |
Research, Society and Development |
repository.name.fl_str_mv |
Research, Society and Development - Universidade Federal de Itajubá (UNIFEI) |
repository.mail.fl_str_mv |
rsd.articles@gmail.com |
_version_ |
1797052825787695104 |