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Numerical segmentation image technique (NSI) in estimation of extraocular muscles volume in Graves' ophthalmopathy

Numerical segmentation image technique (NSI) in ...

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dc.contributor.author Majos, Agata pl
dc.contributor.author Grzelak, Piotr pl
dc.contributor.author Młynarczyk, Wojciech pl
dc.contributor.author Stefańczyk, Ludomir pl
dc.date.accessioned 2019-06-06T10:33:30Z
dc.date.available 2019-06-06T10:33:30Z
dc.date.issued 2007 pl
dc.identifier.issn 1733-134X pl
dc.identifier.uri https://ruj.uj.edu.pl/xmlui/handle/item/76715
dc.language eng pl
dc.rights Udzielam licencji. Uznanie autorstwa - Użycie niekomercyjne - Bez utworów zależnych 4.0 Międzynarodowa *
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/4.0/pl/legalcode *
dc.title Numerical segmentation image technique (NSI) in estimation of extraocular muscles volume in Graves' ophthalmopathy pl
dc.type JournalArticle pl
dc.description.physical 75-81 pl
dc.description.additional Bibliogr. s. 80-81 pl
dc.identifier.weblink http://archiwum.inforadiologia.pl/download/index/idArt/478117.html pl
dc.abstract.en Background: The volume enlargement of extraocular muscles is one of the most frequent reasons of exophthalmos in Graves' ophthalmopathy. Various diameters are widely used in clinical practice for estimating muscles' size. They are not sufficient for the precise and reliable determination of their real volume. Modern computing systems enable numerical analysis of medical images including Magnetic Resonance Imaging (MRI) in an almost automatic way. The aims of this study were: The analysis of different MRI sequences routinely used in the examination of intraorbital structures and their value for NSI application. Determination of clinical value of an NSI program in estimating extraocular muscle volume and comparing the obtained results with the degree of exophthalmos. Material/Methods: 45 patients were qualified to the study and underwent MR examinations in 1, 5 T scanner. The measurements of the degree of exophthalmos and quantity estimation of the total eye muscle volume using the NSI application were made. Results: The best sequence for the NSI application is SE T1. Correlation between muscle volume measurements obtained using the automatic method and after manual modification was the highest for this sequence. In all sequences the final values of volumes for each muscle after manual corrections were close what proves the repetitiveness of the NSI technique. Strong correlation between the total eye muscle volume determined by the NSI and the exophthalmos was found. Conclusions: T1 SE has the highest value for using NSI application for all sequences routinely used in MRI evaluation of orbital structures. The NSI technique is a clinically valuable application that provides objective volume data calculated individually for each orbit. The NSI technique allows more objective estimation of pathological processes leading to exophthalmos; it can be particularly helpful in monitoring discrete changes in muscle volume during the treatment. pl
dc.subject.en Graves' opthalmopathy pl
dc.subject.en muscles' volume pl
dc.subject.en numerical analysis pl
dc.subject.en segmentation pl
dc.description.volume 72 pl
dc.description.number 2 pl
dc.identifier.eissn 1899-0967 pl
dc.title.journal Polish Journal of Radiology pl
dc.language.container eng pl
dc.date.accession 2019-06-06 pl
dc.subtype Article pl
dc.identifier.articleid 478117 pl
dc.rights.original CC-BY-NC-ND; otwarte czasopismo; ostateczna wersja wydawcy; w momencie opublikowania; 0 pl
dc.identifier.project ROD UJ / OP pl


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Udzielam licencji. Uznanie autorstwa - Użycie niekomercyjne - Bez utworów zależnych 4.0 Międzynarodowa Except where otherwise noted, this item's license is described as Udzielam licencji. Uznanie autorstwa - Użycie niekomercyjne - Bez utworów zależnych 4.0 Międzynarodowa