Influence of detectors efficiency normalization on small animal PET image quality

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dc.creatorMateus Gesulado Carneirode Santana
dc.creatorGuilherme Cavalcante de Albuquerque Souza
dc.creatorRodrigo Modesto Gadelha Gontijo
dc.creatorBruno Melo Mendes
dc.creatorAndréa Vidal Ferreira
dc.date.accessioned2023-08-02T20:20:32Z
dc.date.accessioned2025-09-09T00:24:51Z
dc.date.available2023-08-02T20:20:32Z
dc.date.issued2019
dc.format.mimetypepdf
dc.identifier.doi10.15392/bjrs.v7i3.861
dc.identifier.issn23190612
dc.identifier.urihttps://hdl.handle.net/1843/57382
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofBrazilian Journal of Radiation Sciences
dc.rightsAcesso Aberto
dc.subjectTomografia por Emissão de Pósitrons
dc.subject.otherSmall Animal PET
dc.subject.otherNormalization
dc.subject.otherImage Quality
dc.subject.otherNEMA NU 4-2008
dc.titleInfluence of detectors efficiency normalization on small animal PET image quality
dc.typeArtigo de periódico
local.citation.epage12
local.citation.issue3
local.citation.spage1
local.citation.volume7
local.description.resumoA small animal positron emission tomograph (LabPET GE 4) image acquisition is done by 1536 independents channels. Differences in the rate counting of each channel must be corrected so as not compromise image quality. Equipment user manual recommends that normalization of the detectors efficiency be made as often as possible and always whenever there are hardware or software parameters changes - included, but not limited to channels parameters adjustments, electronic cards replacements, channels activation or inactivation or software update. This work evaluates the normalization effects on the image quality parameters. PET image acquisition and analysis were performed using recommended parameters by the NEMA NU 4-2008 standards. Image was reconstructed in different ways using different normalization files. The tests performed indicated that the image quality parameters do not vary significantly with different normalization data. Therefore, a high frequency routine of normalizations is not justified, suggesting a periodical frequency of one month for this procedure.
local.identifier.orcid0000-0001-6479-3087
local.publisher.countryBrasil
local.publisher.departmentMED - DEPARTAMENTO DE ANATOMIA E IMAGEM
local.publisher.initialsUFMG
local.url.externahttps://www.bjrs.org.br/revista/index.php/REVISTA/article/view/861

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