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Sökning: id:"swepub:oai:DiVA.org:oru-50103" > Visual grading eval...

  • Andersson, Karin M.,1989-Örebro University (författare)

Visual grading evaluation of commercially available metal artefact reduction techniques in hip prosthesis computed tomography

  • Artikel/kapitelEngelska2016

Förlag, utgivningsår, omfång ...

  • London, United Kingdom :British Institute of Radiology,2016
  • electronicrdacarrier

Nummerbeteckningar

  • LIBRIS-ID:oai:DiVA.org:oru-50103
  • https://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-50103URI
  • https://doi.org/10.1259/bjr.20150993DOI
  • https://lup.lub.lu.se/record/90595803-5b2a-4b2e-abd1-ae893d7a5c70URI
  • http://kipublications.ki.se/Default.aspx?queryparsed=id:133775625URI

Kompletterande språkuppgifter

  • Språk:engelska
  • Sammanfattning på:engelska

Ingår i deldatabas

Klassifikation

  • Ämneskategori:ref swepub-contenttype
  • Ämneskategori:art swepub-publicationtype

Anmärkningar

  • Objectives: To evaluate metal artefact reduction (MAR) techniques from four computed tomography (CT) vendors in hip prosthesis imaging.Methods: Bilateral hip prosthesis phantom images, obtained by using MAR algorithms for single energy CT data or dual energy CT (DECT) data and by monoenergetic reconstructions of DECT data, were visually graded by five radiologists using ten image quality criteria. Comparisons between the MAR images and a reference image were performed for each scanner separately. Ordinal probit regression analysis was used.Results: The MAR algorithms in general improved the image quality based on the majority of the criteria (up to between 8/10 and 10/10) with a statistically improvement in overall image quality (P<0.001). However, degradation of image quality, such as new artefacts, was seen in some cases. A few monoenergetic reconstruction series improved the image quality (P<0.004) for one of the DECT scanners, but it was only improved for some of the criteria (up to 5/10). Monoenergetic reconstructions resulted in worse image quality for the majority of the criteria (up to 7/10) for the other DECT scanner.Conclusions: The MAR algorithms improved the image quality of the hip prosthesis CT images. However, since additional artefacts and degradation of image quality were seen in some cases, all algorithms should be carefully evaluated for every clinical situation. Monoenergetic reconstructions were in general concluded to be insufficient for reducing metal artifacts. Advances in knowledge: Qualitative evaluation of the usefulness of several MAR techniques from different vendors in CT imaging of hip prosthesis.

Ämnesord och genrebeteckningar

Biuppslag (personer, institutioner, konferenser, titlar ...)

  • Norrman, Eva,1966-Örebro University(Swepub:oru)evnn (författare)
  • Geijer, Håkan,1961-Örebro University,Örebro universitet,Institutionen för medicinska vetenskaper,Department of Radiology, Örebro University Hospital, Örebro, Sweden(Swepub:oru)hngr (författare)
  • Krauss, Wolfgang,1973-Örebro University,Örebro universitet,Institutionen för medicinska vetenskaper,Department of Radiology, Örebro University Hospital, Örebro, Sweden(Swepub:oru)wks (författare)
  • Cao, Yang,1972-Karolinska Institutet,Karolinska Institute(Swepub:oru)yco (författare)
  • Jendeberg, Johan,1972-Örebro University,Örebro universitet,Institutionen för medicinska vetenskaper,Department of Radiology, Örebro University Hospital, Örebro, Sweden(Swepub:oru)jjg (författare)
  • Geijer, Mats,1957-Örebro University,Lund University,Lunds universitet,Diagnostisk radiologi, Lund,Sektion V,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Diagnostic Radiology, (Lund),Section V,Department of Clinical Sciences, Lund,Faculty of Medicine(Swepub:lu)med-mge (författare)
  • Lidén, Mats,1976-Örebro University,Örebro universitet,Institutionen för medicinska vetenskaper,Department of Radiology, Örebro University Hospital, Örebro, Sweden(Swepub:oru)msld (författare)
  • Thunberg, Per,1968-Örebro University,Örebro universitet,Institutionen för medicinska vetenskaper,Department of Medical Physics, Örebro University Hospital, Örebro, Sweden(Swepub:oru)prtg (författare)
  • Örebro UniversityInstitutionen för medicinska vetenskaper (creator_code:org_t)

Sammanhörande titlar

  • Ingår i:British Journal of RadiologyLondon, United Kingdom : British Institute of Radiology89:10630007-12851748-880X

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