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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">A comparative evaluation of cone beam CT and micro-CT on trabecular bone structures in the human mandible</title>
<author><name sortKey="Van Dessel, J" sort="Van Dessel, J" uniqKey="Van Dessel J" first="J" last="Van Dessel">J. Van Dessel</name>
<affiliation><nlm:aff id="aff1"><addr-line>Department of Oral Health Science, Oral Imaging Center, KU Leuven, Leuven, Belgium;</addr-line>
</nlm:aff>
</affiliation>
</author>
<author><name sortKey="Huang, Y" sort="Huang, Y" uniqKey="Huang Y" first="Y" last="Huang">Y. Huang</name>
<affiliation><nlm:aff id="aff1"><addr-line>Department of Oral Health Science, Oral Imaging Center, KU Leuven, Leuven, Belgium;</addr-line>
</nlm:aff>
</affiliation>
<affiliation><nlm:aff id="aff2"><addr-line>Oral Implant Center, West China College of Stomatology, Sichuan University, Chengdu, China;</addr-line>
</nlm:aff>
</affiliation>
</author>
<author><name sortKey="Depypere, M" sort="Depypere, M" uniqKey="Depypere M" first="M" last="Depypere">M. Depypere</name>
<affiliation><nlm:aff id="aff3"><addr-line>Medical Image Computing, Center for Processing Speech and Images, Department of Electrical Engineering, KU Leuven, Leuven, Belgium;</addr-line>
</nlm:aff>
</affiliation>
</author>
<author><name sortKey="Rubira Bullen, I" sort="Rubira Bullen, I" uniqKey="Rubira Bullen I" first="I" last="Rubira-Bullen">I. Rubira-Bullen</name>
<affiliation><nlm:aff id="aff4"><addr-line>Department of Stomatology, School of Dentistry, University of São Paulo, Bauru, Brazil</addr-line>
</nlm:aff>
</affiliation>
</author>
<author><name sortKey="Maes, F" sort="Maes, F" uniqKey="Maes F" first="F" last="Maes">F. Maes</name>
<affiliation><nlm:aff id="aff3"><addr-line>Medical Image Computing, Center for Processing Speech and Images, Department of Electrical Engineering, KU Leuven, Leuven, Belgium;</addr-line>
</nlm:aff>
</affiliation>
</author>
<author><name sortKey="Jacobs, R" sort="Jacobs, R" uniqKey="Jacobs R" first="R" last="Jacobs">R. Jacobs</name>
<affiliation><nlm:aff id="aff1"><addr-line>Department of Oral Health Science, Oral Imaging Center, KU Leuven, Leuven, Belgium;</addr-line>
</nlm:aff>
</affiliation>
</author>
</titleStmt>
<publicationStmt><idno type="wicri:source">PMC</idno>
<idno type="pmid">23833320</idno>
<idno type="pmc">3922263</idno>
<idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3922263</idno>
<idno type="RBID">PMC:3922263</idno>
<idno type="doi">10.1259/dmfr.20130145</idno>
<date when="2013">2013</date>
<idno type="wicri:Area/Pmc/Corpus">000310</idno>
<idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">000310</idno>
</publicationStmt>
<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">A comparative evaluation of cone beam CT and micro-CT on trabecular bone structures in the human mandible</title>
<author><name sortKey="Van Dessel, J" sort="Van Dessel, J" uniqKey="Van Dessel J" first="J" last="Van Dessel">J. Van Dessel</name>
<affiliation><nlm:aff id="aff1"><addr-line>Department of Oral Health Science, Oral Imaging Center, KU Leuven, Leuven, Belgium;</addr-line>
</nlm:aff>
</affiliation>
</author>
<author><name sortKey="Huang, Y" sort="Huang, Y" uniqKey="Huang Y" first="Y" last="Huang">Y. Huang</name>
<affiliation><nlm:aff id="aff1"><addr-line>Department of Oral Health Science, Oral Imaging Center, KU Leuven, Leuven, Belgium;</addr-line>
</nlm:aff>
</affiliation>
<affiliation><nlm:aff id="aff2"><addr-line>Oral Implant Center, West China College of Stomatology, Sichuan University, Chengdu, China;</addr-line>
</nlm:aff>
</affiliation>
</author>
<author><name sortKey="Depypere, M" sort="Depypere, M" uniqKey="Depypere M" first="M" last="Depypere">M. Depypere</name>
<affiliation><nlm:aff id="aff3"><addr-line>Medical Image Computing, Center for Processing Speech and Images, Department of Electrical Engineering, KU Leuven, Leuven, Belgium;</addr-line>
</nlm:aff>
</affiliation>
</author>
<author><name sortKey="Rubira Bullen, I" sort="Rubira Bullen, I" uniqKey="Rubira Bullen I" first="I" last="Rubira-Bullen">I. Rubira-Bullen</name>
<affiliation><nlm:aff id="aff4"><addr-line>Department of Stomatology, School of Dentistry, University of São Paulo, Bauru, Brazil</addr-line>
</nlm:aff>
</affiliation>
</author>
<author><name sortKey="Maes, F" sort="Maes, F" uniqKey="Maes F" first="F" last="Maes">F. Maes</name>
<affiliation><nlm:aff id="aff3"><addr-line>Medical Image Computing, Center for Processing Speech and Images, Department of Electrical Engineering, KU Leuven, Leuven, Belgium;</addr-line>
</nlm:aff>
</affiliation>
</author>
<author><name sortKey="Jacobs, R" sort="Jacobs, R" uniqKey="Jacobs R" first="R" last="Jacobs">R. Jacobs</name>
<affiliation><nlm:aff id="aff1"><addr-line>Department of Oral Health Science, Oral Imaging Center, KU Leuven, Leuven, Belgium;</addr-line>
</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="2013">2013</date>
</imprint>
</series>
</biblStruct>
</sourceDesc>
</fileDesc>
<profileDesc><textClass></textClass>
</profileDesc>
</teiHeader>
<front><div type="abstract" xml:lang="en"><sec><title>Objectives:</title>
<p>The main purpose of this study was to determine the accuracy of cone beam CT (CBCT) in measuring the trabecular bone microstructure, in comparison with micro-CT. The subobjective was to examine to what extent bone quality assessment is influenced by X-ray tube current and voltage settings as well as soft tissue surrounding the bone.</p>
</sec>
<sec><title>Methods:</title>
<p>Eight human mandibular bone samples were scanned using three different clinical exposure protocol within water (W1–3) and without water (NW1–3) by a high-resolution (80 µm) CBCT machine (3D Accuitomo 170<sup>®</sup>
; Morita, Kyoto, Japan). Subsequently, the samples underwent micro-CT scanning (SkyScan 1174®; SkyScan, Antwerp, Belgium). After image acquisition, similar volumes of interest of the trabecular structures captured with CBCT and micro-CT were aligned with each other. Segmentation was then performed, and the morphometric parameters were quantified within the volumes of interest by CTAn software (CTAnalyser<sup>®</sup>
; SkyScan, Antwerp, Belgium). Descriptive statistical analyses and multiple comparisons between all protocols were applied in R software.</p>
</sec>
<sec><title>Results:</title>
<p>High positive Pearson's correlation coefficients were observed between CBCT and micro-CT protocols for all tested morphometric indices except for trabecular thickness. No significant differences were observed between all exposure protocols except for trabecular separation. When examining the soft-tissue effect on trabecular bone structures, no significant differences between NW (1–3) and W (1–3) protocols were observed for all variables.</p>
</sec>
<sec><title>Conclusions:</title>
<p>The present study demonstrated the potential of high-resolution CBCT imaging for <italic>in vivo</italic>
applications of quantitative bone morphometry and bone quality assessment. However, the overestimation of morphometric parameters and acquisition settings in CBCT must be taken into account.</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="hwp">dmfr</journal-id>
<journal-id journal-id-type="publisher-id">dmf</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-loc>48–50 St John Street, London EC1M 4DG, UK</publisher-loc>
</publisher>
</journal-meta>
<article-meta><article-id pub-id-type="pmid">23833320</article-id>
<article-id pub-id-type="pmc">3922263</article-id>
<article-id pub-id-type="publisher-id">dmr13145</article-id>
<article-id pub-id-type="doi">10.1259/dmfr.20130145</article-id>
<article-categories><subj-group subj-group-type="heading"><subject>Research</subject>
</subj-group>
</article-categories>
<title-group><article-title>A comparative evaluation of cone beam CT and micro-CT on trabecular bone structures in the human mandible</article-title>
<alt-title alt-title-type="left-running-head">Comparative evaluation of CBCT and µCT on bone structures analysis</alt-title>
<alt-title alt-title-type="right-running-head">J Van Dessel <italic>et al</italic>
</alt-title>
</title-group>
<contrib-group><contrib contrib-type="author"><name><surname>Van Dessel</surname>
<given-names>J</given-names>
</name>
<xref ref-type="aff" rid="aff1">1</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Huang</surname>
<given-names>Y</given-names>
</name>
<xref ref-type="aff" rid="aff1">1</xref>
<xref ref-type="aff" rid="aff2">2</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Depypere</surname>
<given-names>M</given-names>
</name>
<xref ref-type="aff" rid="aff3">3</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Rubira-Bullen</surname>
<given-names>I</given-names>
</name>
<xref ref-type="aff" rid="aff4">4</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Maes</surname>
<given-names>F</given-names>
</name>
<xref ref-type="aff" rid="aff3">3</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Jacobs</surname>
<given-names>R</given-names>
</name>
<xref ref-type="corresp" rid="cor1">*</xref>
<xref ref-type="aff" rid="aff1">1</xref>
</contrib>
<aff id="aff1"><label>1</label>
<addr-line>Department of Oral Health Science, Oral Imaging Center, KU Leuven, Leuven, Belgium;</addr-line>
</aff>
<aff id="aff2"><label>2</label>
<addr-line>Oral Implant Center, West China College of Stomatology, Sichuan University, Chengdu, China;</addr-line>
</aff>
<aff id="aff3"><label>3</label>
<addr-line>Medical Image Computing, Center for Processing Speech and Images, Department of Electrical Engineering, KU Leuven, Leuven, Belgium;</addr-line>
</aff>
<aff id="aff4"><label>4</label>
<addr-line>Department of Stomatology, School of Dentistry, University of São Paulo, Bauru, Brazil</addr-line>
</aff>
</contrib-group>
<author-notes><corresp id="cor1"><label>*</label>
Correspondence to: Professor R Jacobs, Department of Oral Health Science, Oral Imaging Center, KU Leuven, 3000 Leuven, Belgium. E-mail: <email xlink:href="reinhilde.jacobs@med.kuleuven.be">reinhilde.jacobs@med.kuleuven.be</email>
</corresp>
</author-notes>
<pub-date pub-type="ppub"><month>8</month>
<year>2013</year>
</pub-date>
<pub-date pub-type="epub"><day>07</day>
<month>8</month>
<year>2013</year>
</pub-date>
<volume>42</volume>
<issue>8</issue>
<elocation-id>20130145</elocation-id>
<history><date date-type="received"><day>15</day>
<month>4</month>
<year>2013</year>
</date>
<date date-type="rev-recd"><day>24</day>
<month>6</month>
<year>2013</year>
</date>
<date date-type="accepted"><day>27</day>
<month>6</month>
<year>2013</year>
</date>
</history>
<permissions><copyright-statement>© 2013 The Authors. Published by the British Institute of Radiology</copyright-statement>
<copyright-year>2013</copyright-year>
</permissions>
<abstract><sec><title>Objectives:</title>
<p>The main purpose of this study was to determine the accuracy of cone beam CT (CBCT) in measuring the trabecular bone microstructure, in comparison with micro-CT. The subobjective was to examine to what extent bone quality assessment is influenced by X-ray tube current and voltage settings as well as soft tissue surrounding the bone.</p>
</sec>
<sec><title>Methods:</title>
<p>Eight human mandibular bone samples were scanned using three different clinical exposure protocol within water (W1–3) and without water (NW1–3) by a high-resolution (80 µm) CBCT machine (3D Accuitomo 170<sup>®</sup>
; Morita, Kyoto, Japan). Subsequently, the samples underwent micro-CT scanning (SkyScan 1174®; SkyScan, Antwerp, Belgium). After image acquisition, similar volumes of interest of the trabecular structures captured with CBCT and micro-CT were aligned with each other. Segmentation was then performed, and the morphometric parameters were quantified within the volumes of interest by CTAn software (CTAnalyser<sup>®</sup>
; SkyScan, Antwerp, Belgium). Descriptive statistical analyses and multiple comparisons between all protocols were applied in R software.</p>
</sec>
<sec><title>Results:</title>
<p>High positive Pearson's correlation coefficients were observed between CBCT and micro-CT protocols for all tested morphometric indices except for trabecular thickness. No significant differences were observed between all exposure protocols except for trabecular separation. When examining the soft-tissue effect on trabecular bone structures, no significant differences between NW (1–3) and W (1–3) protocols were observed for all variables.</p>
</sec>
<sec><title>Conclusions:</title>
<p>The present study demonstrated the potential of high-resolution CBCT imaging for <italic>in vivo</italic>
applications of quantitative bone morphometry and bone quality assessment. However, the overestimation of morphometric parameters and acquisition settings in CBCT must be taken into account.</p>
</sec>
</abstract>
<kwd-group><kwd>cone beam CT</kwd>
<kwd>micro-computed tomography</kwd>
<kwd>bone architecture</kwd>
<kwd>quantitative bone morphometry</kwd>
</kwd-group>
<counts><fig-count count="3"></fig-count>
<table-count count="2"></table-count>
<ref-count count="22"></ref-count>
<page-count count="7"></page-count>
</counts>
</article-meta>
</front>
</pmc>
</record>
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