Grayscale median (GSM) post-processing, posterizing, and color mapping for carotid ultrasound

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dc.contributor.authorFilho, Pedro Luciano Mellucci [UNESP]
dc.contributor.authorBertanha, Matheus [UNESP]
dc.contributor.authorJaldin, Rodrigo Gibin [UNESP]
dc.contributor.authorYoshida, Winston Bonetti [UNESP]
dc.contributor.authorSobreira, Marcone Lima [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.date.accessioned2023-07-29T16:05:48Z
dc.date.available2023-07-29T16:05:48Z
dc.date.issued2023-01-01
dc.description.abstractFactors related to atherosclerotic plaques may indicate instability, such as ulcerations, intraplaque hemorrhages, lipid core, thin or irregular fibrous cap, and inflammation. The grayscale median (GSM) value is one of the most widespread methods of studying atherosclerotic plaques and it is therefore important to comprehensively standardize image post-processing. Post-processing was performed using Photoshop 23.1.1.202. Images were standardized by adjusting the grayscale histogram curves, setting the darkest point of the vascular lumen (blood) to zero and the distal adventitia to 190. Posterization and color mapping were performed. A methodology that presents the current state of the art in an accessible and illustrative way should contribute to the dissemination of GSM analysis. This article describes and illustrates the process step by step.en
dc.description.affiliationUniversidade Estadual Paulista – UNESP, SP
dc.description.affiliationUnespUniversidade Estadual Paulista – UNESP, SP
dc.identifierhttp://dx.doi.org/10.1590/1677-5449.202200812
dc.identifier.citationJornal Vascular Brasileiro, v. 22.
dc.identifier.doi10.1590/1677-5449.202200812
dc.identifier.issn1677-7301
dc.identifier.issn1677-5449
dc.identifier.scopus2-s2.0-85148224415
dc.identifier.urihttp://hdl.handle.net/11449/249661
dc.language.isoeng
dc.language.isopor
dc.relation.ispartofJornal Vascular Brasileiro
dc.sourceScopus
dc.subjectafterimage
dc.subjectcarotid artery diseases
dc.subjectcarotid stenosis
dc.subjectcomputer-assisted image interpretation
dc.subjectDoppler ultrasound
dc.titleGrayscale median (GSM) post-processing, posterizing, and color mapping for carotid ultrasounden
dc.titlePós-processamento da mediana de escala de cinza (GSM), posterização e remapeamento de cores para ultrassonografia de carótidaspt
dc.typeArtigo

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