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Effect of electric potential and current on mandibular linear measurements in cone beam CT

Identifieur interne : 002279 ( Pmc/Corpus ); précédent : 002278; suivant : 002280

Effect of electric potential and current on mandibular linear measurements in cone beam CT

Auteurs : S. Panmekiate ; W. Apinhasmit ; A. Petersson

Source :

Dentomaxillofacial Radiology [ 0250-832X ] ; 2012.

RBID : PMC:3608379

Abstract

Objectives

The purpose of this study was to compare mandibular linear distances measured from cone beam CT (CBCT) images produced by different radiographic parameter settings (peak kilovoltage and milliampere value).

Methods

20 cadaver hemimandibles with edentulous ridges posterior to the mental foramen were embedded in clear resin blocks and scanned by a CBCT machine (CB MercuRay^TM; Hitachi Medico Technology Corp., Chiba-ken, Japan). The radiographic parameters comprised four peak kilovoltage settings (60 kVp, 80 kVp, 100 kVp and 120 kVp) and two milliampere settings (10 mA and 15 mA). A 102.4 mm field of view was chosen. Each hemimandible was scanned 8 times with 8 different parameter combinations resulting in 160 CBCT data sets. On the cross-sectional images, six linear distances were measured. To assess the intraobserver variation, the 160 data sets were remeasured after 2 weeks. The measurement precision was calculated using Dahlberg's formula. With the same peak kilovoltage, the measurements yielded by different milliampere values were compared using the paired t-test. With the same milliampere value, the measurements yielded by different peak kilovoltage were compared using analysis of variance. A significant difference was considered when p < 0.05.

Results

Measurement precision varied from 0.03 mm to 0.28 mm. No significant differences in the distances were found among the different radiographic parameter combinations.

Conclusions

Based upon the specific machine in the present study, low peak kilovoltage and milliampere value might be used for linear measurements in the posterior mandible.

Url:

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3608379

DOI: 10.1259/dmfr/51664704
PubMed: 22499132
PubMed Central: 3608379

Links to Exploration step

PMC:3608379

Le document en format XML

<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Effect of electric potential and current on mandibular linear measurements in cone beam CT</title>
<author><name sortKey="Panmekiate, S" sort="Panmekiate, S" uniqKey="Panmekiate S" first="S" last="Panmekiate">S. Panmekiate</name>
<affiliation><nlm:aff id="aff1"><addr-line>Department of Radiology, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand</addr-line>
</nlm:aff>
</affiliation>
</author>
<author><name sortKey="Apinhasmit, W" sort="Apinhasmit, W" uniqKey="Apinhasmit W" first="W" last="Apinhasmit">W. Apinhasmit</name>
<affiliation><nlm:aff id="aff2"><addr-line>Department of Anatomy, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand</addr-line>
</nlm:aff>
</affiliation>
</author>
<author><name sortKey="Petersson, A" sort="Petersson, A" uniqKey="Petersson A" first="A" last="Petersson">A. Petersson</name>
<affiliation><nlm:aff id="aff3"><addr-line>Department of Oral Radiology, Faculty of Odontology, Malmö University, Malmö, Sweden</addr-line>
</nlm:aff>
</affiliation>
</author>
</titleStmt>
<publicationStmt><idno type="wicri:source">PMC</idno>
<idno type="pmid">22499132</idno>
<idno type="pmc">3608379</idno>
<idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3608379</idno>
<idno type="RBID">PMC:3608379</idno>
<idno type="doi">10.1259/dmfr/51664704</idno>
<date when="2012">2012</date>
<idno type="wicri:Area/Pmc/Corpus">002279</idno>
<idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">002279</idno>
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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Effect of electric potential and current on mandibular linear measurements in cone beam CT</title>
<author><name sortKey="Panmekiate, S" sort="Panmekiate, S" uniqKey="Panmekiate S" first="S" last="Panmekiate">S. Panmekiate</name>
<affiliation><nlm:aff id="aff1"><addr-line>Department of Radiology, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand</addr-line>
</nlm:aff>
</affiliation>
</author>
<author><name sortKey="Apinhasmit, W" sort="Apinhasmit, W" uniqKey="Apinhasmit W" first="W" last="Apinhasmit">W. Apinhasmit</name>
<affiliation><nlm:aff id="aff2"><addr-line>Department of Anatomy, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand</addr-line>
</nlm:aff>
</affiliation>
</author>
<author><name sortKey="Petersson, A" sort="Petersson, A" uniqKey="Petersson A" first="A" last="Petersson">A. Petersson</name>
<affiliation><nlm:aff id="aff3"><addr-line>Department of Oral Radiology, Faculty of Odontology, Malmö University, Malmö, Sweden</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="2012">2012</date>
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<front><div type="abstract" xml:lang="en"><sec><title>Objectives</title>
<p>The purpose of this study was to compare mandibular linear distances measured from cone beam CT (CBCT) images produced by different radiographic parameter settings (peak kilovoltage and milliampere value).</p>
</sec>
<sec><title>Methods</title>
<p>20 cadaver hemimandibles with edentulous ridges posterior to the mental foramen were embedded in clear resin blocks and scanned by a CBCT machine (CB MercuRay<sup>TM</sup>
; Hitachi Medico Technology Corp., Chiba-ken, Japan). The radiographic parameters comprised four peak kilovoltage settings (60 kVp, 80 kVp, 100 kVp and 120 kVp) and two milliampere settings (10 mA and 15 mA). A 102.4 mm field of view was chosen. Each hemimandible was scanned 8 times with 8 different parameter combinations resulting in 160 CBCT data sets. On the cross-sectional images, six linear distances were measured. To assess the intraobserver variation, the 160 data sets were remeasured after 2 weeks. The measurement precision was calculated using Dahlberg's formula. With the same peak kilovoltage, the measurements yielded by different milliampere values were compared using the paired <italic>t</italic>
-test. With the same milliampere value, the measurements yielded by different peak kilovoltage were compared using analysis of variance. A significant difference was considered when <italic>p</italic>
 < 0.05.</p>
</sec>
<sec><title>Results</title>
<p>Measurement precision varied from 0.03 mm to 0.28 mm. No significant differences in the distances were found among the different radiographic parameter combinations.</p>
</sec>
<sec><title>Conclusions</title>
<p>Based upon the specific machine in the present study, low peak kilovoltage and milliampere value might be used for linear measurements in the posterior mandible.</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>131–151 Great Titchfield Street, London W1W 5BB</publisher-loc>
</publisher>
</journal-meta>
<article-meta><article-id pub-id-type="pmid">22499132</article-id>
<article-id pub-id-type="pmc">3608379</article-id>
<article-id pub-id-type="publisher-id">D11125</article-id>
<article-id pub-id-type="doi">10.1259/dmfr/51664704</article-id>
<article-categories><subj-group subj-group-type="heading"><subject>Research</subject>
</subj-group>
</article-categories>
<title-group><article-title>Effect of electric potential and current on mandibular linear measurements in cone beam CT</article-title>
<alt-title alt-title-type="running-head">Measurements in CBCT</alt-title>
</title-group>
<contrib-group><contrib contrib-type="author"><name><surname>Panmekiate</surname>
<given-names>S</given-names>
</name>
<xref ref-type="corresp" rid="cor1">*</xref>
<xref ref-type="aff" rid="aff1">1</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Apinhasmit</surname>
<given-names>W</given-names>
</name>
<xref ref-type="aff" rid="aff2">2</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Petersson</surname>
<given-names>A</given-names>
</name>
<xref ref-type="aff" rid="aff3">3</xref>
</contrib>
</contrib-group>
<aff id="aff1"><label>1</label>
<addr-line>Department of Radiology, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand</addr-line>
</aff>
<aff id="aff2"><label>2</label>
<addr-line>Department of Anatomy, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand</addr-line>
</aff>
<aff id="aff3"><label>3</label>
<addr-line>Department of Oral Radiology, Faculty of Odontology, Malmö University, Malmö, Sweden</addr-line>
</aff>
<author-notes><corresp id="cor1">Dr S Panmekiate, Department of Radiology, Faculty of Dentistry, Chulalongkorn University, 34 Henri-Dunant Road, Pathumwan, Bangkok 10330, Thailand. E-mail: <email>psoontra@chula.ac.th</email>
</corresp>
</author-notes>
<pub-date pub-type="ppub"><month>10</month>
<year>2012</year>
</pub-date>
<volume>41</volume>
<issue>7</issue>
<fpage>578</fpage>
<lpage>582</lpage>
<history><date date-type="received"><day>13</day>
<month>4</month>
<year>2011</year>
</date>
<date date-type="rev-recd"><day>10</day>
<month>10</month>
<year>2011</year>
</date>
<date date-type="accepted"><day>10</day>
<month>10</month>
<year>2011</year>
</date>
</history>
<permissions><copyright-statement>© 2012 The British Institute of Radiology</copyright-statement>
<copyright-year>2012</copyright-year>
</permissions>
<abstract><sec><title>Objectives</title>
<p>The purpose of this study was to compare mandibular linear distances measured from cone beam CT (CBCT) images produced by different radiographic parameter settings (peak kilovoltage and milliampere value).</p>
</sec>
<sec><title>Methods</title>
<p>20 cadaver hemimandibles with edentulous ridges posterior to the mental foramen were embedded in clear resin blocks and scanned by a CBCT machine (CB MercuRay<sup>TM</sup>
; Hitachi Medico Technology Corp., Chiba-ken, Japan). The radiographic parameters comprised four peak kilovoltage settings (60 kVp, 80 kVp, 100 kVp and 120 kVp) and two milliampere settings (10 mA and 15 mA). A 102.4 mm field of view was chosen. Each hemimandible was scanned 8 times with 8 different parameter combinations resulting in 160 CBCT data sets. On the cross-sectional images, six linear distances were measured. To assess the intraobserver variation, the 160 data sets were remeasured after 2 weeks. The measurement precision was calculated using Dahlberg's formula. With the same peak kilovoltage, the measurements yielded by different milliampere values were compared using the paired <italic>t</italic>
-test. With the same milliampere value, the measurements yielded by different peak kilovoltage were compared using analysis of variance. A significant difference was considered when <italic>p</italic>
 < 0.05.</p>
</sec>
<sec><title>Results</title>
<p>Measurement precision varied from 0.03 mm to 0.28 mm. No significant differences in the distances were found among the different radiographic parameter combinations.</p>
</sec>
<sec><title>Conclusions</title>
<p>Based upon the specific machine in the present study, low peak kilovoltage and milliampere value might be used for linear measurements in the posterior mandible.</p>
</sec>
</abstract>
<kwd-group><kwd>cone-beam computed tomography</kwd>
<kwd>dental implants</kwd>
<kwd>mandible</kwd>
</kwd-group>
</article-meta>
</front>
</pmc>
</record>

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Effect of electric potential and current on mandibular linear measurements in cone beam CT

Effect of electric potential and current on mandibular linear measurements in cone beam CT

Source :

Abstract

Links to Exploration step

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri

Pour générer des pages wiki