Study for pediatric protocol optimization in chest CT scans
Radiological exams are increasingly used in clinic for diagnostic analysis of different types of pathologies. These tests are associated with a dose that is received by the patient. In addition, the risks in exposure to ionizing radiation are different according to the group which the individual bel...
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| Format: | Article |
| Language: | English |
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Brazilian Radiation Protection Society (Sociedade Brasileira de Proteção Radiológica, SBPR)
2019-01-01
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| Series: | Brazilian Journal of Radiation Sciences |
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| Online Access: | https://bjrs.org.br/revista/index.php/REVISTA/article/view/334 |
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| author | Marcel Javier FREDERICO Yolma Banguero Hugo Cerecetto Priscila Santana Fernando Oliveira Arnaldo Prata Mourao |
| author_facet | Marcel Javier FREDERICO Yolma Banguero Hugo Cerecetto Priscila Santana Fernando Oliveira Arnaldo Prata Mourao |
| author_sort | Marcel Javier FREDERICO |
| collection | DOAJ |
| description | Radiological exams are increasingly used in clinic for diagnostic analysis of different types of pathologies. These tests are associated with a dose that is received by the patient. In addition, the risks in exposure to ionizing radiation are different according to the group which the individual belongs. According to age, the group of children is more radiosensitive than adults. In this work we have obtained values of the air-weighted kerma index for chest scans studies in a Genereal Electric Computed Tomography (CT) scanner model Discovery with 64-channels. Using an adult protocol, two scans have been performed, one using a cylinder standard PMMA phantom while the second one has used an oblong chest phantom designed for a two year old pediatric patient. Furthermore, other protocols have been selected by varying the X-ray tube current but maintaining the same voltage, in order to obtain a reduction in the dose received by the pediatric patient but maintaining the image quality. The use of the adult protocol in the child phantom has generated a value in the air-weighted kerma index 89.47% greater than that received using the adult phantom. As small patients receive higher doses, the use of specific protocols for children is important for the dose reduction in CT tests. Due to the different characteristics of CT scanners and in order to optimize these protocols with regard to dose and diagnostic image quality, there is a need to have pediatric phantoms in health centers |
| format | Article |
| id | doaj-art-4f6e397c2e60413d804939e14845c44c |
| institution | Kabale University |
| issn | 2319-0612 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Brazilian Radiation Protection Society (Sociedade Brasileira de Proteção Radiológica, SBPR) |
| record_format | Article |
| series | Brazilian Journal of Radiation Sciences |
| spelling | doaj-art-4f6e397c2e60413d804939e14845c44c2025-08-20T03:56:14ZengBrazilian Radiation Protection Society (Sociedade Brasileira de Proteção Radiológica, SBPR)Brazilian Journal of Radiation Sciences2319-06122019-01-0171A10.15392/bjrs.v7i1A.334Study for pediatric protocol optimization in chest CT scansMarcel Javier FREDERICO0Yolma Banguero1Hugo Cerecetto2Priscila Santana3Fernando Oliveira4Arnaldo Prata Mourao5Centro de Investigaciones Nucleares. Universidad de la República. Montevideo - Uruguay Departamento de Engenharia Nuclear. Universidad Federal de Minas Gerais. Belo Horizonte - Brasil.Servicio de Radioterapia oncológica. Hospital de Clínicas. Universidad de la República.Centro de Investigaciones Nucleares. Universidad de la República. Cátedra de radiofarmacia.Departamento de Engenharia Nuclear. Universidad Federal de Minas Gerais. Belo HorizonteCentro de Engenharia Biomédica- CEFET Belo Horizonte Departamento de Engenharia Nuclear - Universidad Federal de Minas GeraisCentro de Engenharia Biomédica- CEFET Belo Horizonte Departamento de Engenharia Nuclear - Universidad Federal de Minas GeraisRadiological exams are increasingly used in clinic for diagnostic analysis of different types of pathologies. These tests are associated with a dose that is received by the patient. In addition, the risks in exposure to ionizing radiation are different according to the group which the individual belongs. According to age, the group of children is more radiosensitive than adults. In this work we have obtained values of the air-weighted kerma index for chest scans studies in a Genereal Electric Computed Tomography (CT) scanner model Discovery with 64-channels. Using an adult protocol, two scans have been performed, one using a cylinder standard PMMA phantom while the second one has used an oblong chest phantom designed for a two year old pediatric patient. Furthermore, other protocols have been selected by varying the X-ray tube current but maintaining the same voltage, in order to obtain a reduction in the dose received by the pediatric patient but maintaining the image quality. The use of the adult protocol in the child phantom has generated a value in the air-weighted kerma index 89.47% greater than that received using the adult phantom. As small patients receive higher doses, the use of specific protocols for children is important for the dose reduction in CT tests. Due to the different characteristics of CT scanners and in order to optimize these protocols with regard to dose and diagnostic image quality, there is a need to have pediatric phantoms in health centershttps://bjrs.org.br/revista/index.php/REVISTA/article/view/334dosimetryphantomstomography |
| spellingShingle | Marcel Javier FREDERICO Yolma Banguero Hugo Cerecetto Priscila Santana Fernando Oliveira Arnaldo Prata Mourao Study for pediatric protocol optimization in chest CT scans Brazilian Journal of Radiation Sciences dosimetry phantoms tomography |
| title | Study for pediatric protocol optimization in chest CT scans |
| title_full | Study for pediatric protocol optimization in chest CT scans |
| title_fullStr | Study for pediatric protocol optimization in chest CT scans |
| title_full_unstemmed | Study for pediatric protocol optimization in chest CT scans |
| title_short | Study for pediatric protocol optimization in chest CT scans |
| title_sort | study for pediatric protocol optimization in chest ct scans |
| topic | dosimetry phantoms tomography |
| url | https://bjrs.org.br/revista/index.php/REVISTA/article/view/334 |
| work_keys_str_mv | AT marceljavierfrederico studyforpediatricprotocoloptimizationinchestctscans AT yolmabanguero studyforpediatricprotocoloptimizationinchestctscans AT hugocerecetto studyforpediatricprotocoloptimizationinchestctscans AT priscilasantana studyforpediatricprotocoloptimizationinchestctscans AT fernandooliveira studyforpediatricprotocoloptimizationinchestctscans AT arnaldopratamourao studyforpediatricprotocoloptimizationinchestctscans |