EdenteV2, Main, Exploration, bibRecord, 001203

Effect of exposure parameters and voxel size on bone structure analysis in CBCT

Identifieur interne : 001203 ( Main/Exploration ); précédent : 001202; suivant : 001204

Effect of exposure parameters and voxel size on bone structure analysis in CBCT

Auteurs : R. Pauwels ; T. Faruangsaeng ; T. Charoenkarn ; N. Ngonphloy ; S. Panmekiate

Source :

Dentomaxillofacial Radiology [ 0250-832X ] ; 2015.

RBID : PMC:4628422

Abstract

Objective:

To evaluate the effect of exposure parameters and voxel size on bone structure analysis in dental CBCT.

Methods:

20 cylindrical bone samples underwent CBCT scanning (3D Accuitomo 170; J. Morita, Kyoto, Japan) using three combinations of tube voltage (kV) and tube current-exposure time product (mAs), corresponding with a CT dose index of 3.4 mGy: 90 kV and 62 mAs, 73 kV and 108.5 mAs, and 64 kV and 155 mAs. Images were reconstructed with a voxel size of 0.080 mm. In addition, the 90 kV scan was reconstructed at voxel sizes of 0.125, 0.160, 0.200, 0.250 and 0.300 mm. The following parameters were measured: bone surface (BS) and bone volume (BV) per total volume (TV), fractal dimension, connectivity density, anisotropy, trabecular thickness (Tb. Th.) and trabecular spacing (Tb. Sp.), structure model index (SMI), plateness, branches, junctions, branch length and triple points.

Results:

For most parameters, there was no significant effect of the kV value. For BV/TV, “90 kV” differed significantly from the other kV settings; for SMI, “64 vs 73 kV” was significant. For BS/TV, fractal dimension, connectivity density, branches, junctions and triple points values incrementally decreased at larger voxel sizes, whereas an increase was seen for Tb. Th., Tb. Sp., SMI and branch length. For anisotropy and plateness, no (or little) effect of voxel size was seen; for BV/TV, the effect was inconsistent.

Conclusions:

Most bone structure parameters are not affected by the kV if the radiation dose is constant. Parameters dealing with the trabecular structure are heavily affected by the voxel size.

Url:

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4628422

DOI: 10.1259/dmfr.20150078
PubMed: 26054572
PubMed Central: 4628422

Affiliations:

Le document en format XML

<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Effect of exposure parameters and voxel size on bone structure analysis in CBCT</title>
<author><name sortKey="Pauwels, R" sort="Pauwels, R" uniqKey="Pauwels R" first="R" last="Pauwels">R. Pauwels</name>
<affiliation><nlm:aff id="aff1"></nlm:aff>
</affiliation>
<affiliation><nlm:aff id="aff2"></nlm:aff>
</affiliation>
</author>
<author><name sortKey="Faruangsaeng, T" sort="Faruangsaeng, T" uniqKey="Faruangsaeng T" first="T" last="Faruangsaeng">T. Faruangsaeng</name>
<affiliation><nlm:aff id="aff1"></nlm:aff>
</affiliation>
</author>
<author><name sortKey="Charoenkarn, T" sort="Charoenkarn, T" uniqKey="Charoenkarn T" first="T" last="Charoenkarn">T. Charoenkarn</name>
<affiliation><nlm:aff id="aff1"></nlm:aff>
</affiliation>
</author>
<author><name sortKey="Ngonphloy, N" sort="Ngonphloy, N" uniqKey="Ngonphloy N" first="N" last="Ngonphloy">N. Ngonphloy</name>
<affiliation><nlm:aff id="aff1"></nlm:aff>
</affiliation>
</author>
<author><name sortKey="Panmekiate, S" sort="Panmekiate, S" uniqKey="Panmekiate S" first="S" last="Panmekiate">S. Panmekiate</name>
<affiliation><nlm:aff id="aff1"></nlm:aff>
</affiliation>
</author>
</titleStmt>
<publicationStmt><idno type="wicri:source">PMC</idno>
<idno type="pmid">26054572</idno>
<idno type="pmc">4628422</idno>
<idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4628422</idno>
<idno type="RBID">PMC:4628422</idno>
<idno type="doi">10.1259/dmfr.20150078</idno>
<date when="2015">2015</date>
<idno type="wicri:Area/Pmc/Corpus">000206</idno>
<idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">000206</idno>
<idno type="wicri:Area/Pmc/Curation">000206</idno>
<idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Curation">000206</idno>
<idno type="wicri:Area/Pmc/Checkpoint">000E49</idno>
<idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Checkpoint">000E49</idno>
<idno type="wicri:Area/Ncbi/Merge">005C26</idno>
<idno type="wicri:Area/Ncbi/Curation">005C26</idno>
<idno type="wicri:Area/Ncbi/Checkpoint">005C26</idno>
<idno type="wicri:doubleKey">0250-832X:2015:Pauwels R:effect:of:exposure</idno>
<idno type="wicri:Area/Main/Merge">001206</idno>
<idno type="wicri:Area/Main/Curation">001203</idno>
<idno type="wicri:Area/Main/Exploration">001203</idno>
</publicationStmt>
<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Effect of exposure parameters and voxel size on bone structure analysis in CBCT</title>
<author><name sortKey="Pauwels, R" sort="Pauwels, R" uniqKey="Pauwels R" first="R" last="Pauwels">R. Pauwels</name>
<affiliation><nlm:aff id="aff1"></nlm:aff>
</affiliation>
<affiliation><nlm:aff id="aff2"></nlm:aff>
</affiliation>
</author>
<author><name sortKey="Faruangsaeng, T" sort="Faruangsaeng, T" uniqKey="Faruangsaeng T" first="T" last="Faruangsaeng">T. Faruangsaeng</name>
<affiliation><nlm:aff id="aff1"></nlm:aff>
</affiliation>
</author>
<author><name sortKey="Charoenkarn, T" sort="Charoenkarn, T" uniqKey="Charoenkarn T" first="T" last="Charoenkarn">T. Charoenkarn</name>
<affiliation><nlm:aff id="aff1"></nlm:aff>
</affiliation>
</author>
<author><name sortKey="Ngonphloy, N" sort="Ngonphloy, N" uniqKey="Ngonphloy N" first="N" last="Ngonphloy">N. Ngonphloy</name>
<affiliation><nlm:aff id="aff1"></nlm:aff>
</affiliation>
</author>
<author><name sortKey="Panmekiate, S" sort="Panmekiate, S" uniqKey="Panmekiate S" first="S" last="Panmekiate">S. Panmekiate</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="2015">2015</date>
</imprint>
</series>
</biblStruct>
</sourceDesc>
</fileDesc>
<profileDesc><textClass></textClass>
</profileDesc>
</teiHeader>
<front><div type="abstract" xml:lang="en"><sec><title>Objective:</title>
<p>To evaluate the effect of exposure parameters and voxel size on bone structure analysis in dental CBCT.</p>
</sec>
<sec><title>Methods:</title>
<p>20 cylindrical bone samples underwent CBCT scanning (3D Accuitomo 170; J. Morita, Kyoto, Japan) using three combinations of tube voltage (kV) and tube current-exposure time product (mAs), corresponding with a CT dose index of 3.4 mGy: 90 kV and 62 mAs, 73 kV and 108.5 mAs, and 64 kV and 155 mAs. Images were reconstructed with a voxel size of 0.080 mm. In addition, the 90 kV scan was reconstructed at voxel sizes of 0.125, 0.160, 0.200, 0.250 and 0.300 mm. The following parameters were measured: bone surface (BS) and bone volume (BV) per total volume (TV), fractal dimension, connectivity density, anisotropy, trabecular thickness (Tb. Th.) and trabecular spacing (Tb. Sp.), structure model index (SMI), plateness, branches, junctions, branch length and triple points.</p>
</sec>
<sec><title>Results:</title>
<p>For most parameters, there was no significant effect of the kV value. For BV/TV, “90 kV” differed significantly from the other kV settings; for SMI, “64 <italic>vs</italic>
 73 kV” was significant. For BS/TV, fractal dimension, connectivity density, branches, junctions and triple points values incrementally decreased at larger voxel sizes, whereas an increase was seen for Tb. Th., Tb. Sp., SMI and branch length. For anisotropy and plateness, no (or little) effect of voxel size was seen; for BV/TV, the effect was inconsistent.</p>
</sec>
<sec><title>Conclusions:</title>
<p>Most bone structure parameters are not affected by the kV if the radiation dose is constant. Parameters dealing with the trabecular structure are heavily affected by the voxel size.</p>
</sec>
</div>
</front>
</TEI>
<affiliations><list></list>
<tree><noCountry><name sortKey="Charoenkarn, T" sort="Charoenkarn, T" uniqKey="Charoenkarn T" first="T" last="Charoenkarn">T. Charoenkarn</name>
<name sortKey="Faruangsaeng, T" sort="Faruangsaeng, T" uniqKey="Faruangsaeng T" first="T" last="Faruangsaeng">T. Faruangsaeng</name>
<name sortKey="Ngonphloy, N" sort="Ngonphloy, N" uniqKey="Ngonphloy N" first="N" last="Ngonphloy">N. Ngonphloy</name>
<name sortKey="Panmekiate, S" sort="Panmekiate, S" uniqKey="Panmekiate S" first="S" last="Panmekiate">S. Panmekiate</name>
<name sortKey="Pauwels, R" sort="Pauwels, R" uniqKey="Pauwels R" first="R" last="Pauwels">R. Pauwels</name>
</noCountry>
</tree>
</affiliations>
</record>

Pour manipuler ce document sous Unix (Dilib)

EXPLOR_STEP=$WICRI_ROOT/Wicri/Santé/explor/EdenteV2/Data/Main/Exploration

HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 001203 | SxmlIndent | more

HfdSelect -h $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd -nk 001203 | SxmlIndent | more

Pour mettre un lien sur cette page dans le réseau Wicri

{{Explor lien
   |wiki=    Wicri/Santé
   |area=    EdenteV2
   |flux=    Main
   |étape=   Exploration
   |type=    RBID
   |clé=     PMC:4628422
   |texte=   Effect of exposure parameters and voxel size on bone structure analysis in CBCT
}}

Pour générer des pages wiki

HfdIndexSelect -h $EXPLOR_AREA/Data/Main/Exploration/RBID.i   -Sk "pubmed:26054572" \
       | HfdSelect -Kh $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd   \
       | NlmPubMed2Wicri -a EdenteV2

This area was generated with Dilib version V0.6.32.
Data generation: Thu Nov 30 15:26:48 2017. Site generation: Tue Mar 8 16:36:20 2022

Serveur d'exploration sur le patient édenté

Effect of exposure parameters and voxel size on bone structure analysis in CBCT

Effect of exposure parameters and voxel size on bone structure analysis in CBCT

Source :

Abstract

Links toward previous steps (curation, corpus...)

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

	Serveur d'exploration sur le patient édenté
	Attention, ce site est en cours de développement ! Attention, site généré par des moyens informatiques à partir de corpus bruts. Les informations ne sont donc pas validées.