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dc.contributor.authorVan De Berg, Nick J
dc.contributor.authorSanchez-Margallo, Juan A.
dc.contributor.authorvan Dijke, Arjan P
dc.contributor.authorLangø, Thomas
dc.contributor.authorVan Den Dobbelsteen, John J
dc.date.accessioned2019-11-15T10:41:07Z
dc.date.available2019-11-15T10:41:07Z
dc.date.created2019-04-25T18:31:22Z
dc.date.issued2019
dc.identifier.citationUltrasound in Medicine and Biology. 2019, 45 (4), 998-1009.nb_NO
dc.identifier.issn0301-5629
dc.identifier.urihttp://hdl.handle.net/11250/2628720
dc.description.abstractDuring ultrasound-guided percutaneous interventions, needle localization can be a challenge. To increase needle visibility, enhancements of both the imaging methods and the needle surface properties have been investigated. However, a methodical approach to compare potential solutions is currently unavailable. The work described here involves automated image acquisition, analysis and reporting techniques to collect large amounts of data efficiently, delineate relevant factors and communicate effects. Data processing included filtering, line fitting and image intensity analysis steps. Foreground and background image samples were used to compute a contrast-to-noise ratio or a signal ratio. The approach was evaluated in a comparative study of commercially available and custom-made needles. Varied parameters included needle material, diameter and surface roughness. The shafts with kerfed patterns and the trocar and chiba tips performed best. The approach enabled an intuitive polar depiction of needle visibility in ultrasound images for a large range of insertion angles.nb_NO
dc.language.isoengnb_NO
dc.publisherElseviernb_NO
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/deed.no*
dc.titleA Methodical Quantification of Needle Visibility and Echogenicity in Ultrasound Imagesnb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.description.versionpublishedVersionnb_NO
dc.rights.holderCopyright © 2018 The Author(s). Published by Elsevier Inc. on behalf of World Federation for Ultrasound in Medicine & Biology. This is an open access article under the CC BY-NC-ND license. (http://creativecommons.org/licenses/by-nc-nd/4.0/) Printed in the USA. All rights reserved.nb_NO
dc.source.pagenumber998-1009nb_NO
dc.source.volume45nb_NO
dc.source.journalUltrasound in Medicine and Biologynb_NO
dc.source.issue4nb_NO
dc.identifier.doi10.1016/j.ultrasmedbio.2018.10.004
dc.identifier.cristin1693994
cristin.unitcode7401,90,25,0
cristin.unitnameHelse
cristin.ispublishedtrue
cristin.fulltextpostprint
cristin.qualitycode2


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Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal
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