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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Assessment of metal artefact reduction around dental titanium implants in cone beam CT</title><author><name sortKey="Parsa, A" sort="Parsa, A" uniqKey="Parsa A" first="A" last="Parsa">A. Parsa</name><affiliation><nlm:aff id="aff1"></nlm:aff></affiliation></author><author><name sortKey="Ibrahim, N" sort="Ibrahim, N" uniqKey="Ibrahim N" first="N" last="Ibrahim">N. Ibrahim</name><affiliation><nlm:aff id="aff1"></nlm:aff></affiliation></author><author><name sortKey="Hassan, B" sort="Hassan, B" uniqKey="Hassan B" first="B" last="Hassan">B. Hassan</name><affiliation><nlm:aff id="aff2"></nlm:aff></affiliation></author><author><name sortKey="Syriopoulos, K" sort="Syriopoulos, K" uniqKey="Syriopoulos K" first="K" last="Syriopoulos">K. Syriopoulos</name><affiliation><nlm:aff id="aff1"></nlm:aff></affiliation></author><author><name sortKey="Van Der Stelt, P" sort="Van Der Stelt, P" uniqKey="Van Der Stelt P" first="P" last="Van Der Stelt">P. Van Der Stelt</name><affiliation><nlm:aff id="aff1"></nlm:aff></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">25135316</idno><idno type="pmc">4170846</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4170846</idno><idno type="RBID">PMC:4170846</idno><idno type="doi">10.1259/dmfr.20140019</idno><date when="2014">2014</date><idno type="wicri:Area/Pmc/Corpus">002315</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">002315</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Assessment of metal artefact reduction around dental titanium implants in cone beam CT</title><author><name sortKey="Parsa, A" sort="Parsa, A" uniqKey="Parsa A" first="A" last="Parsa">A. Parsa</name><affiliation><nlm:aff id="aff1"></nlm:aff></affiliation></author><author><name sortKey="Ibrahim, N" sort="Ibrahim, N" uniqKey="Ibrahim N" first="N" last="Ibrahim">N. Ibrahim</name><affiliation><nlm:aff id="aff1"></nlm:aff></affiliation></author><author><name sortKey="Hassan, B" sort="Hassan, B" uniqKey="Hassan B" first="B" last="Hassan">B. Hassan</name><affiliation><nlm:aff id="aff2"></nlm:aff></affiliation></author><author><name sortKey="Syriopoulos, K" sort="Syriopoulos, K" uniqKey="Syriopoulos K" first="K" last="Syriopoulos">K. Syriopoulos</name><affiliation><nlm:aff id="aff1"></nlm:aff></affiliation></author><author><name sortKey="Van Der Stelt, P" sort="Van Der Stelt, P" uniqKey="Van Der Stelt P" first="P" last="Van Der Stelt">P. Van Der Stelt</name><affiliation><nlm:aff id="aff1"></nlm:aff></affiliation></author></analytic><series><title level="j">Dentomaxillofacial Radiology</title><idno type="ISSN">0250-832X</idno><idno type="eISSN">1476-542X</idno><imprint><date when="2014">2014</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><sec><title>Objectives:</title><p>The aim of this study was to investigate if the metal artefact reduction (MAR) tool used in the software of the ORTHOPANTOMOGRAPH<sup>®</sup> OP300 (Instrumentarium Dental, Tuusula, Finland) can improve the gray value levels in post-operative implant scans.</p></sec><sec><title>Methods:</title><p>20 potential implant sites were selected from 5 edentulous human dry mandibles. Each mandible was scanned by a CBCT scanner, and images were produced under three different conditions: implant sites drilled but no implants inserted, implants inserted without application of MAR and implants inserted with application of MAR. Using Geomagic<sup>®</sup> Studio 2012 (Geomagic, Morrisville, NC) and 3Diagnosys<sup>®</sup> v. 5.3.1 (3Diemme<sup>®</sup> SRL, Cantù, Italy) software, three scans of each mandible were superimposed. The mean gray value of identical regions of bone around the implants was derived for each condition. The differences between gray value measurements at implant sites derived from different conditions were assessed.</p></sec><sec><title>Results:</title><p>A significant difference was found between mean gray values from the scans with no implants inserted and with implants inserted (with and without MAR) (<italic>p</italic> = 0.012). No significant difference was revealed for gray values measured from scans with and without MAR (<italic>p</italic> = 0.975).</p></sec><sec><title>Conclusions:</title><p>The MAR tool in the software of the ORTHOPANTOMOGRAPH OP300 CBCT scanner does not significantly correct the voxel gray values affected by the metal artefact in the vicinity of an implant in human dry mandibles.</p></sec></div></front></TEI><pmc article-type="research-article"><pmc-comment>The publisher of this article does not allow downloading of the full text in XML form.</pmc-comment>
<front><journal-meta><journal-id journal-id-type="nlm-ta">Dentomaxillofac Radiol</journal-id><journal-id journal-id-type="iso-abbrev">Dentomaxillofac Radiol</journal-id><journal-id journal-id-type="publisher-id">dmfr</journal-id><journal-title-group><journal-title>Dentomaxillofacial Radiology</journal-title></journal-title-group><issn pub-type="ppub">0250-832X</issn><issn pub-type="epub">1476-542X</issn><publisher><publisher-name>The British Institute of Radiology.</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="pmid">25135316</article-id><article-id pub-id-type="pmc">4170846</article-id><article-id pub-id-type="publisher-manuscript">14019</article-id><article-id pub-id-type="doi">10.1259/dmfr.20140019</article-id><article-categories><subj-group subj-group-type="heading"><subject>Technical Report</subject></subj-group></article-categories><title-group><article-title>Assessment of metal artefact reduction around dental titanium implants in cone beam CT</article-title><alt-title alt-title-type="left-running-head">Metal artefact reduction in CBCT</alt-title><alt-title alt-title-type="right-running-head">A Parsa <italic>et al</italic></alt-title></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name><surname>Parsa</surname><given-names>A</given-names></name><xref ref-type="aff" rid="aff1"><sup>1</sup></xref></contrib><contrib contrib-type="author"><name><surname>Ibrahim</surname><given-names>N</given-names></name><xref ref-type="aff" rid="aff1"><sup>1</sup></xref></contrib><contrib contrib-type="author"><name><surname>Hassan</surname><given-names>B</given-names></name><xref ref-type="aff" rid="aff2"><sup>2</sup></xref></contrib><contrib contrib-type="author"><name><surname>Syriopoulos</surname><given-names>K</given-names></name><xref ref-type="aff" rid="aff1"><sup>1</sup></xref></contrib><contrib contrib-type="author"><name><surname>van der Stelt</surname><given-names>P</given-names></name><xref ref-type="aff" rid="aff1"><sup>1</sup></xref></contrib><aff id="aff1"><label><sup>1</sup></label><addr-line>Department of General and Specialized Dentistry, Section Oral and Maxillofacial Radiology, Academic Center for Dentistry Amsterdam (ACTA), Amsterdam, Netherlands</addr-line></aff><aff id="aff2"><label><sup>2</sup></label><addr-line>Department of Oral Implantology and Prosthetic Dentistry, Academic Center for Dentistry Amsterdam (ACTA), Amsterdam, Netherlands</addr-line></aff></contrib-group><author-notes><corresp id="cor1">Correspondence to: Dr Azin Parsa. E-mail: <email xlink:href="a.parsa@acta.nl">a.parsa@acta.nl</email></corresp></author-notes><pub-date pub-type="ppub"><month>10</month><year>2014</year><string-date>October 2014</string-date></pub-date><pub-date pub-type="epub"><day>16</day><month>9</month><year>2014</year></pub-date><volume>43</volume><issue>7</issue><elocation-id>20140019</elocation-id><history><date date-type="received"><day>17</day><month>1</month><year>2014</year><string-date>Received on January 17, 2014</string-date></date><date date-type="rev-recd"><day>6</day><month>8</month><year>2014</year><string-date>Revised on August 6, 2014</string-date></date><date date-type="accepted"><day>13</day><month>8</month><year>2014</year><string-date>Accepted on August 13, 2014</string-date></date></history><permissions><copyright-statement>© 2014 The Authors. Published by the British Institute of Radiology</copyright-statement><copyright-year>2014</copyright-year><copyright-holder>The British Institute of Radiology</copyright-holder></permissions><self-uri content-type="pdf" xlink:href="dmfr.20140019.pdf"></self-uri><abstract><sec><title>Objectives:</title><p>The aim of this study was to investigate if the metal artefact reduction (MAR) tool used in the software of the ORTHOPANTOMOGRAPH<sup>®</sup> OP300 (Instrumentarium Dental, Tuusula, Finland) can improve the gray value levels in post-operative implant scans.</p></sec><sec><title>Methods:</title><p>20 potential implant sites were selected from 5 edentulous human dry mandibles. Each mandible was scanned by a CBCT scanner, and images were produced under three different conditions: implant sites drilled but no implants inserted, implants inserted without application of MAR and implants inserted with application of MAR. Using Geomagic<sup>®</sup> Studio 2012 (Geomagic, Morrisville, NC) and 3Diagnosys<sup>®</sup> v. 5.3.1 (3Diemme<sup>®</sup> SRL, Cantù, Italy) software, three scans of each mandible were superimposed. The mean gray value of identical regions of bone around the implants was derived for each condition. The differences between gray value measurements at implant sites derived from different conditions were assessed.</p></sec><sec><title>Results:</title><p>A significant difference was found between mean gray values from the scans with no implants inserted and with implants inserted (with and without MAR) (<italic>p</italic> = 0.012). No significant difference was revealed for gray values measured from scans with and without MAR (<italic>p</italic> = 0.975).</p></sec><sec><title>Conclusions:</title><p>The MAR tool in the software of the ORTHOPANTOMOGRAPH OP300 CBCT scanner does not significantly correct the voxel gray values affected by the metal artefact in the vicinity of an implant in human dry mandibles.</p></sec></abstract><kwd-group><kwd>cone beam computed tomography</kwd><x xml:space="preserve">; </x><kwd>artefacts</kwd><x xml:space="preserve">; </x><kwd>dental implants</kwd><x xml:space="preserve">; </x><kwd>titanium</kwd></kwd-group><counts><fig-count count="2"></fig-count><table-count count="2"></table-count><ref-count count="27"></ref-count><page-count count="6"></page-count></counts></article-meta></front></pmc></record>Pour manipuler ce document sous Unix (Dilib)
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