Diagnostic reference level quantities for adult chest and abdomen-pelvis CT examinations: correlation with organ doses

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art_COSTA_Diagnostic_reference_level_quantities_for_adult_chest_and_2023.PDF (2.68 MB)
Citações na Scopus
2
Tipo de produção
article
Data de publicação
2023
DOI
Scopus
Web of Science
PubMed
Título da Revista
ISSN da Revista
Título do Volume
Editora
SPRINGER WIEN
Autores
COSTA, Paulo Roberto
TOMAL, Alessandra
NERSISSIAN, Denise Yanikian
LEE, Choonsik
Citação
INSIGHTS INTO IMAGING, v.14, n.1, article ID 60, 13p, 2023
Projetos de Pesquisa
Unidades Organizacionais
Fascículo
Resumo
ObjectivesTo evaluate correlations between DRL quantities (DRLq) stratified into patient size groups for non-contrast chest and abdomen-pelvis CT examinations in adult patients and the corresponding organ doses.MethodsThis study presents correlations between DRLq (CTDIvol, DLP and SSDE) stratified into patient size ranges and corresponding organ doses shared in four groups: inside, peripheral, distributed and outside. The demographic, technical and dosimetric parameters were used to identify the influence of these quantities in organ doses. A robust statistical method was implemented in order to establish these correlations and its statistical significance.ResultsMedian values of the grouped organ doses are presented according to the effective diameter ranges. Organ doses in the regions inside the imaged area are higher than the organ doses in peripheral, distributed and outside regions, excepted to the peripheral doses associated with chest examinations. Different levels of statistical significance between organ doses and the DRLq were presented.ConclusionsCorrelations between DRLq and target-organ doses associated with clinical practice can support guidance's to the establishment of optimization criteria. SSDE demonstrated to be significant in the evaluation of organ doses is also highlighted. The proposed model allows the design of optimization actions with specific risk-reduction results.
Palavras-chave
Organ doses, Computed tomography, Chest, Abdomen-pelvis, Statistics
URI
https://observatorio.fm.usp.br/handle/OPI/58263
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Coleções
Artigos e Materiais de Revistas Científicas - HC/InRad
Artigos e Materiais de Revistas Científicas - HC/ICESP