Reduction of guide needle streak artifact in CT-guided biopsy

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dc.contributor.authorMcWilliams, Sebastian R.
dc.contributor.authorMurphy, Kevin P.
dc.contributor.authorGolestaneh, Safieh
dc.contributor.authorO'Regan, Kevin N.
dc.contributor.authorArellano, Ronald S.
dc.contributor.authorMaher, Michael M.
dc.contributor.authorO'Connor, Owen J.
dc.date.accessioned2018-08-15T14:17:55Z
dc.date.available2018-08-15T14:17:55Z
dc.date.issued2014-10-11
dc.date.updated2018-08-15T14:09:57Z
dc.description.abstractPurpose: Computed tomography (CT)–guided core needle biopsy (CNB) can be affected by streak artifact obscuring the needle tip. This study investigates factors that influence the occurrence and severity of streak artifact during CNB. Materials and Methods: Eight coaxial guide needles of two sizes from two manufacturers with and without stylets were imaged in a CT phantom, with CT reconstructed with adaptive statistical iterative reconstruction and filtered back projection. CNB-related streak artifact was quantified with profile analysis in an image-processing program. Differences between maximum attenuation at the needle tip and minimum attenuation in the streak artifact were compared for each variable. Diagnostic acceptability and streak artifact were subjectively assessed on each phantom image and on 40 clinical CNB procedures by three independent blinded reviewers following training case review. Results: Artifact was significantly less with the central stylet removed versus in situ (median, 1,145 HU vs 3,390 HU; P < .001) for all needles, and less for 19-gauge needles versus 17-gauge needles (median, 1,334 HU vs 2,780 HU, respectively; P = .006). There were no differences based on manufacturer (P = .906) or reconstruction algorithm (P = .524). Independent reviews found that streak artifact was significantly reduced when the central stylet was removed (κ = 0.875–1.0; P < .001), and needle tip position was better in cases in which the stylet was removed (κ = 0.231–0.711; P < .001). Conclusions: Streak artifact can be reduced and needle tip visualization improved by confirming final biopsy needle position with the central stylet removed on CT and using smaller-gauge guide needles.en
dc.description.statusPeer revieweden
dc.description.versionSubmitted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationMcWilliams, S. R., Murphy, K. P., Golestaneh, S., O’Regan, K. N., Arellano, R. S., Maher, M. M. and O’Connor, O. J. (2014) 'Reduction of Guide Needle Streak Artifact in CT-Guided Biopsy', Journal of Vascular and Interventional Radiology, 25(12), pp. 1929-1935. doi: 10.1016/j.jvir.2014.08.028en
dc.identifier.doi10.1016/j.jvir.2014.08.028
dc.identifier.endpage1935en
dc.identifier.issn1051-0443
dc.identifier.issued12en
dc.identifier.journaltitleJournal of Vascular and Interventional Radiologyen
dc.identifier.startpage1929en
dc.identifier.urihttps://hdl.handle.net/10468/6615
dc.identifier.volume25en
dc.language.isoenen
dc.publisherElsevieren
dc.relation.urihttp://www.sciencedirect.com/science/article/pii/S105104431400846X
dc.rights© 2014 SIR. Published by Elsevier Inc. All rights reserved. This submitted manuscript version is made available under the CC-BY-NC-ND 4.0 licenseen
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/en
dc.subjectCore needle biopsy (CNB)en
dc.subjectArtifactsen
dc.subjectBiopsy, large-core needleen
dc.subjectBiopsy, needleen
dc.subjectImage processing, computer-assisteden
dc.subjectImage-guided biopsyen
dc.subjectObserver variationen
dc.subjectPhantoms, imagingen
dc.subjectTomography, x-ray computeden
dc.subjectComputer assisted tomographyen
dc.subjectCT-guided biopsyen
dc.subjectStreak artifacten
dc.subjectASiRen
dc.subjectGuide needleen
dc.subjectCoaxial needleen
dc.subjectCentral styleten
dc.subjectPhoton starvationen
dc.subjectProcedure-related complications.en
dc.titleReduction of guide needle streak artifact in CT-guided biopsyen
dc.typeArticle (peer-reviewed)en
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