{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T18:18:16Z","timestamp":1790014696695,"version":"4.0.1"},"reference-count":16,"publisher":"SAGE Publications","issue":"8","license":[{"start":{"date-parts":[[2021,7,6]],"date-time":"2021-07-06T00:00:00Z","timestamp":1625529600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"funder":[{"DOI":"10.13039\/100004374","name":"Medtronic","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100004374","id-type":"DOI","asserted-by":"publisher"}]},{"name":"OrthoContor"},{"name":"Carbofix"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Acta Radiol"],"published-print":{"date-parts":[[2022,8]]},"abstract":"<jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Carbon-reinforced PEEK (C-FRP) implants are non-magnetic and have increasingly been used for the fixation of spinal instabilities.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>To compare the effect of different metal artifact reduction (MAR) techniques in magnetic resonance imaging (MRI) on titanium and C-FRP spinal implants.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Material and Methods<\/jats:title>\n                    <jats:p>Rod-pedicle screw constructs were mounted on ovine cadaver spine specimens and instrumented with either eight titanium pedicle screws or pedicle screws made of C-FRP and marked with an ultrathin titanium shell. MR scans were performed of each configuration on a 3-T scanner. MR sequences included transaxial conventional T1-weighted turbo spin echo (TSE) sequences, T2-weighted TSE, and short-tau inversion recovery (STIR) sequences and two different MAR-techniques: high-bandwidth (HB) and view-angle-tilting (VAT) with slice encoding for metal artifact correction (SEMAC). Metal artifact degree was assessed by qualitative and quantitative measures.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>There was a much stronger effect on artifact reduction with using C-FRP implants compared to using specific MRI MAR-techniques (screw shank: P\u2009&lt;\u20090.001; screw tulip: P\u2009&lt;\u20090.001; rod: P\u2009&lt;\u20090.001). VAT-SEMAC sequences were able to reduce screw-related signal loss artifacts in constructs with titanium screws to a certain degree. Constructs with C-FRP screws showed less artifact-related implant diameter amplification when compared to constructs with titanium screws ( P\u2009&lt;\u20090.001).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Constructs with C-FRP screws are associated with significantly less artifacts compared to constructs with titanium screws including dedicated MAR techniques. Artifact-reducing sequences are able to reduce implant-related artifacts. This effect is stronger in constructs with titanium screws than in constructs with C-FRP screws.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/02841851211029077","type":"journal-article","created":{"date-parts":[[2021,7,7]],"date-time":"2021-07-07T01:30:10Z","timestamp":1625621410000},"page":"1062-1070","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":6,"title":["Comparison of metal artifact reduction techniques in magnetic resonance imaging of carbon-reinforced PEEK and titanium spinal implants"],"prefix":"10.1177","volume":"63","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5051-0998","authenticated-orcid":false,"given":"Georg","family":"Osterhoff","sequence":"first","affiliation":[{"name":"Department of Trauma, University Hospital Zurich, University Hospital Zurich, Zurich, Switzerland"},{"name":"Department of Orthopaedics, Trauma and Plastic Surgery, University Hospital of Leipzig, Leipzig, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6317-4815","authenticated-orcid":false,"given":"Florian A","family":"Huber","sequence":"additional","affiliation":[{"name":"Department of Diagnostic and Interventional Radiology, University Hospital Zurich, Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Laura C","family":"Graf","sequence":"additional","affiliation":[{"name":"Department of Diagnostic and Interventional Radiology, University Hospital Zurich, Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ferdinand","family":"Erdlen","sequence":"additional","affiliation":[{"name":"Department of Trauma, University Hospital Zurich, University Hospital Zurich, Zurich, Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hans-Christoph","family":"Pape","sequence":"additional","affiliation":[{"name":"Department of Trauma, University Hospital Zurich, University Hospital Zurich, Zurich, Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kai","family":"Sprengel","sequence":"additional","affiliation":[{"name":"Department of Trauma, University Hospital Zurich, University Hospital Zurich, Zurich, Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Roman","family":"Guggenberger","sequence":"additional","affiliation":[{"name":"Department of Diagnostic and Interventional Radiology, University Hospital Zurich, Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2021,7,6]]},"reference":[{"key":"bibr1-02841851211029077","doi-asserted-by":"publisher","DOI":"10.1080\/028418501127346846"},{"key":"bibr2-02841851211029077","doi-asserted-by":"publisher","DOI":"10.1016\/j.actbio.2013.05.017"},{"key":"bibr3-02841851211029077","doi-asserted-by":"publisher","DOI":"10.1016\/S0730-725X(99)00135-6"},{"key":"bibr4-02841851211029077","doi-asserted-by":"publisher","DOI":"10.1097\/RLI.0b013e318240a919"},{"key":"bibr5-02841851211029077","doi-asserted-by":"publisher","DOI":"10.1007\/s00330-012-2501-7"},{"key":"bibr6-02841851211029077","doi-asserted-by":"publisher","DOI":"10.1007\/s00330-015-3596-4"},{"key":"bibr7-02841851211029077","doi-asserted-by":"publisher","DOI":"10.1007\/s00256-014-2057-5"},{"key":"bibr8-02841851211029077","doi-asserted-by":"publisher","DOI":"10.1007\/s00256-016-2437-0"},{"key":"bibr9-02841851211029077","doi-asserted-by":"publisher","DOI":"10.1007\/s00586-017-5258-5"},{"key":"bibr10-02841851211029077","doi-asserted-by":"publisher","DOI":"10.1007\/s00586-018-5538-8"},{"key":"bibr11-02841851211029077","doi-asserted-by":"publisher","DOI":"10.1016\/j.clinbiomech.2020.105153"},{"key":"bibr12-02841851211029077","doi-asserted-by":"publisher","DOI":"10.1007\/s00256-015-2158-9"},{"key":"bibr13-02841851211029077","doi-asserted-by":"publisher","DOI":"10.1055\/s-0041-104893"},{"key":"bibr14-02841851211029077","doi-asserted-by":"publisher","DOI":"10.1038\/s41598-020-73386-5"},{"key":"bibr15-02841851211029077","doi-asserted-by":"publisher","DOI":"10.1007\/s00234-009-0537-4"},{"key":"bibr16-02841851211029077","doi-asserted-by":"publisher","DOI":"10.1016\/j.wneu.2017.04.091"}],"container-title":["Acta 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