Accuracy of reformatted CT image for measuring the pre-implant site: analysis of the image distortion related to the gantry angle change.
Identifieur interne : 002975 ( PubMed/Checkpoint ); précédent : 002974; suivant : 002976Accuracy of reformatted CT image for measuring the pre-implant site: analysis of the image distortion related to the gantry angle change.
Auteurs : S-C Choi [Corée du Sud] ; C-H Ann ; H-M Choi ; M-S Heo ; S-S LeeSource :
- Dento maxillo facial radiology [ 0250-832X ] ; 2002.
Descripteurs français
- KwdFr :
- Algorithmes, Humains, Mandibule (imagerie diagnostique), Mâchoire édentée (imagerie diagnostique), Planification des soins du patient, Pose d'implant dentaire endo-osseux, Posture, Radiographie numérisée dentaire, Reproductibilité des résultats, Technique de soustraction, Tomodensitométrie, Traitement d'image par ordinateur ().
- MESH :
- imagerie diagnostique : Mandibule, Mâchoire édentée.
- Algorithmes, Humains, Planification des soins du patient, Pose d'implant dentaire endo-osseux, Posture, Radiographie numérisée dentaire, Reproductibilité des résultats, Technique de soustraction, Tomodensitométrie, Traitement d'image par ordinateur.
English descriptors
- KwdEn :
- Algorithms, Dental Implantation, Endosseous, Humans, Image Processing, Computer-Assisted (methods), Jaw, Edentulous (diagnostic imaging), Mandible (diagnostic imaging), Patient Care Planning, Posture, Radiography, Dental, Digital, Reproducibility of Results, Subtraction Technique, Tomography, X-Ray Computed.
- MESH :
Abstract
In a multiplanar reconstruction CT program (CT/MPR), the altered gantry angle corresponding to the patient's position during scanning for multiplanar reformatted CT may cause distortion of the image. The aim of this study was to quantitatively assess the distortion in reformatted central panoramic and cross-sectional images owing to the change of gantry angle.
DOI: 10.1038/sj.dmfr.4600702
PubMed: 12087445
Affiliations:
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pubmed:12087445Le document en format XML
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sort="Ann, C H" uniqKey="Ann C" first="C-H" last="Ann">C-H Ann</name></author><author><name sortKey="Choi, H M" sort="Choi, H M" uniqKey="Choi H" first="H-M" last="Choi">H-M Choi</name></author><author><name sortKey="Heo, M S" sort="Heo, M S" uniqKey="Heo M" first="M-S" last="Heo">M-S Heo</name></author><author><name sortKey="Lee, S S" sort="Lee, S S" uniqKey="Lee S" first="S-S" last="Lee">S-S Lee</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2002">2002</date><idno type="RBID">pubmed:12087445</idno><idno type="pmid">12087445</idno><idno type="doi">10.1038/sj.dmfr.4600702</idno><idno type="wicri:Area/PubMed/Corpus">003169</idno><idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Corpus" wicri:corpus="PubMed">003169</idno><idno type="wicri:Area/PubMed/Curation">003169</idno><idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Curation">003169</idno><idno type="wicri:Area/PubMed/Checkpoint">003169</idno><idno 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type="city">Séoul</settlement></placeName></affiliation></author><author><name sortKey="Ann, C H" sort="Ann, C H" uniqKey="Ann C" first="C-H" last="Ann">C-H Ann</name></author><author><name sortKey="Choi, H M" sort="Choi, H M" uniqKey="Choi H" first="H-M" last="Choi">H-M Choi</name></author><author><name sortKey="Heo, M S" sort="Heo, M S" uniqKey="Heo M" first="M-S" last="Heo">M-S Heo</name></author><author><name sortKey="Lee, S S" sort="Lee, S S" uniqKey="Lee S" first="S-S" last="Lee">S-S Lee</name></author></analytic><series><title level="j">Dento maxillo facial radiology</title><idno type="ISSN">0250-832X</idno><imprint><date when="2002" type="published">2002</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Algorithms</term><term>Dental Implantation, Endosseous</term><term>Humans</term><term>Image Processing, Computer-Assisted (methods)</term><term>Jaw, Edentulous (diagnostic imaging)</term><term>Mandible (diagnostic imaging)</term><term>Patient Care Planning</term><term>Posture</term><term>Radiography, Dental, Digital</term><term>Reproducibility of Results</term><term>Subtraction Technique</term><term>Tomography, X-Ray Computed</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Algorithmes</term><term>Humains</term><term>Mandibule (imagerie diagnostique)</term><term>Mâchoire édentée (imagerie diagnostique)</term><term>Planification des soins du patient</term><term>Pose d'implant dentaire endo-osseux</term><term>Posture</term><term>Radiographie numérisée dentaire</term><term>Reproductibilité des résultats</term><term>Technique de soustraction</term><term>Tomodensitométrie</term><term>Traitement d'image par ordinateur ()</term></keywords><keywords scheme="MESH" qualifier="diagnostic imaging" xml:lang="en"><term>Jaw, Edentulous</term><term>Mandible</term></keywords><keywords scheme="MESH" qualifier="imagerie diagnostique" xml:lang="fr"><term>Mandibule</term><term>Mâchoire édentée</term></keywords><keywords scheme="MESH" qualifier="methods" xml:lang="en"><term>Image Processing, Computer-Assisted</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Algorithms</term><term>Dental Implantation, Endosseous</term><term>Humans</term><term>Patient Care Planning</term><term>Posture</term><term>Radiography, Dental, Digital</term><term>Reproducibility of Results</term><term>Subtraction Technique</term><term>Tomography, X-Ray Computed</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Algorithmes</term><term>Humains</term><term>Planification des soins du patient</term><term>Pose d'implant dentaire endo-osseux</term><term>Posture</term><term>Radiographie numérisée dentaire</term><term>Reproductibilité des résultats</term><term>Technique de soustraction</term><term>Tomodensitométrie</term><term>Traitement d'image par ordinateur</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">In a multiplanar reconstruction CT program (CT/MPR), the altered gantry angle corresponding to the patient's position during scanning for multiplanar reformatted CT may cause distortion of the image. The aim of this study was to quantitatively assess the distortion in reformatted central panoramic and cross-sectional images owing to the change of gantry angle.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">12087445</PMID><DateCompleted><Year>2002</Year><Month>11</Month><Day>18</Day></DateCompleted><DateRevised><Year>2016</Year><Month>11</Month><Day>24</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0250-832X</ISSN><JournalIssue CitedMedium="Print"><Volume>31</Volume><Issue>4</Issue><PubDate><Year>2002</Year><Month>Jul</Month></PubDate></JournalIssue><Title>Dento maxillo facial radiology</Title><ISOAbbreviation>Dentomaxillofac Radiol</ISOAbbreviation></Journal><ArticleTitle>Accuracy of reformatted CT image for measuring the pre-implant site: analysis of the image distortion related to the gantry angle change.</ArticleTitle><Pagination><MedlinePgn>273-7</MedlinePgn></Pagination><Abstract><AbstractText Label="OBJECTIVES" NlmCategory="OBJECTIVE">In a multiplanar reconstruction CT program (CT/MPR), the altered gantry angle corresponding to the patient's position during scanning for multiplanar reformatted CT may cause distortion of the image. The aim of this study was to quantitatively assess the distortion in reformatted central panoramic and cross-sectional images owing to the change of gantry angle.</AbstractText><AbstractText Label="METHODS" NlmCategory="METHODS">A resin block model with four cylindrical holes and a human dry mandible were used in high resolution conventional CT scanning. A MPR software package was used for reformatted panoramic and cross-sectional images. The block and the gantry were equally inclined at 0 degrees, 15 degrees and 30 degrees. The relationship between the positional difference and depth of the hole as determined in the reformatted image, and the actual depth was analysed with respect to the gantry angle. The actual depths (H) were calculated by use of the measured depths (h) and the inclined angles: H=hxcos beta. The positional differences of the hole bases (W) were also calculated by use of the measured depths and the inclined angles: W=hxsin beta or Hxtan beta.</AbstractText><AbstractText Label="RESULTS" NlmCategory="RESULTS">Increasing the gantry angle, increased the depth and inclination of the holes in the reformatted central panoramic images. Inclined angle (beta) was the same as gantry angle.</AbstractText><AbstractText Label="CONCLUSION" NlmCategory="CONCLUSIONS">When the gantry angle is not at 0 degrees, certain CT/MPR programs may distort the reformatted image. If distortion occurs, the corrected position and usable length of pre-implant sites can be calculated by use of the above formula.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Choi</LastName><ForeName>S-C</ForeName><Initials>SC</Initials><AffiliationInfo><Affiliation>Department of Oral and Maxillofacial Radiology, Dental Research Institute and BK 21, College of Dentistry, Seoul National University, Chongno-gu, raychoi@snu.ac.krSeoul, Korea.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Ann</LastName><ForeName>C-H</ForeName><Initials>CH</Initials></Author><Author ValidYN="Y"><LastName>Choi</LastName><ForeName>H-M</ForeName><Initials>HM</Initials></Author><Author ValidYN="Y"><LastName>Heo</LastName><ForeName>M-S</ForeName><Initials>MS</Initials></Author><Author ValidYN="Y"><LastName>Lee</LastName><ForeName>S-S</ForeName><Initials>SS</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>Dentomaxillofac Radiol</MedlineTA><NlmUniqueID>7609576</NlmUniqueID><ISSNLinking>0250-832X</ISSNLinking></MedlineJournalInfo><CitationSubset>D</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D000465" MajorTopicYN="N">Algorithms</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D003758" MajorTopicYN="Y">Dental Implantation, Endosseous</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D006801" MajorTopicYN="N">Humans</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D007091" MajorTopicYN="N">Image Processing, Computer-Assisted</DescriptorName><QualifierName UI="Q000379" MajorTopicYN="Y">methods</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D007575" MajorTopicYN="N">Jaw, Edentulous</DescriptorName><QualifierName UI="Q000000981" MajorTopicYN="Y">diagnostic imaging</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D008334" MajorTopicYN="N">Mandible</DescriptorName><QualifierName UI="Q000000981" MajorTopicYN="N">diagnostic imaging</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D010347" MajorTopicYN="N">Patient Care Planning</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D011187" MajorTopicYN="N">Posture</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D019252" MajorTopicYN="Y">Radiography, Dental, Digital</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D015203" MajorTopicYN="N">Reproducibility of Results</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D013382" MajorTopicYN="N">Subtraction Technique</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D014057" MajorTopicYN="N">Tomography, X-Ray Computed</DescriptorName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2000</Year><Month>03</Month><Day>14</Day></PubMedPubDate><PubMedPubDate PubStatus="revised"><Year>2001</Year><Month>08</Month><Day>14</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2001</Year><Month>11</Month><Day>21</Day></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2002</Year><Month>6</Month><Day>28</Day><Hour>10</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2002</Year><Month>11</Month><Day>26</Day><Hour>4</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2002</Year><Month>6</Month><Day>28</Day><Hour>10</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">12087445</ArticleId><ArticleId IdType="doi">10.1038/sj.dmfr.4600702</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Corée du Sud</li></country><settlement><li>Séoul</li></settlement><orgName><li>Université nationale de Séoul</li></orgName></list><tree><noCountry><name sortKey="Ann, C H" sort="Ann, C H" uniqKey="Ann C" first="C-H" last="Ann">C-H Ann</name><name sortKey="Choi, H M" sort="Choi, H M" uniqKey="Choi H" first="H-M" last="Choi">H-M Choi</name><name sortKey="Heo, M S" sort="Heo, M S" uniqKey="Heo M" first="M-S" last="Heo">M-S Heo</name><name sortKey="Lee, S S" sort="Lee, S S" uniqKey="Lee S" first="S-S" last="Lee">S-S Lee</name></noCountry><country name="Corée du Sud"><noRegion><name sortKey="Choi, S C" sort="Choi, S C" uniqKey="Choi S" first="S-C" last="Choi">S-C Choi</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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