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Conference Paper: Image calibration and registration in cone-beam computed tomogram for measuring the accuracy of computer-aided implant surgery

TitleImage calibration and registration in cone-beam computed tomogram for measuring the accuracy of computer-aided implant surgery
Authors
KeywordsCone beam computed tomography
Cartesian coordinates
Implant surgical guide
Mapping
Rigid registration
Issue Date2015
PublisherSPIE - International Society for Optical Engineering. The Journal's web site is located at http://spie.org/x1848.xml?WT.svl=mddp2
Citation
Proc. SPIE 9405, Image Processing: Machine Vision Applications VIII (27 February 2015), v. 9405, p. 94050A-1-94050A-12 How to Cite?
AbstractMedical radiography is the use of radiation to “see through” a human body without breaching its integrity (surface). With computed tomography (CT)/cone beam computed tomography (CBCT), three-dimensional (3D) imaging can be produced. These imagings not only facilitate disease diagnosis but also enable computer-aided surgical planning/navigation. In dentistry, the common method for transfer of the virtual surgical planning to the patient (reality) is the use of surgical stent either with a preloaded planning (static) like a channel or a real time surgical navigation (dynamic) after registration with fiducial markers (RF). This paper describes using the corner of a cube as a radiopaque fiducial marker on an acrylic (plastic) stent, this RF allows robust calibration and registration of Cartesian (x, y, z)- coordinates for linking up the patient (reality) and the imaging (virtuality) and hence the surgical planning can be transferred in either static or dynamic way. The accuracy of computer-aided implant surgery was measured with reference to coordinates. In our preliminary model surgery, a dental implant was planned virtually and placed with preloaded surgical guide. The deviation of the placed implant apex from the planning was x=+0.56mm [more right], y=- 0.05mm [deeper], z=-0.26mm [more lingual]) which was within clinically 2mm safety range. For comparison with the virtual planning, the physically placed implant was CT/CBCT scanned and errors may be introduced. The difference of the actual implant apex to the virtual apex was x=0.00mm, y=+0.21mm [shallower], z=-1.35mm [more lingual] and this should be brought in mind when interpret the results.
Persistent Identifierhttp://hdl.handle.net/10722/220017
ISBN
ISSN

 

DC FieldValueLanguage
dc.contributor.authorLam, WYH-
dc.contributor.authorNgan, HYT-
dc.contributor.authorWat, PYP-
dc.contributor.authorLuk, HWK-
dc.contributor.authorGoto, TK-
dc.contributor.authorPow, EHN-
dc.date.accessioned2015-10-15T07:47:54Z-
dc.date.available2015-10-15T07:47:54Z-
dc.date.issued2015-
dc.identifier.citationProc. SPIE 9405, Image Processing: Machine Vision Applications VIII (27 February 2015), v. 9405, p. 94050A-1-94050A-12-
dc.identifier.isbn9781628414950-
dc.identifier.issn0277-786X-
dc.identifier.urihttp://hdl.handle.net/10722/220017-
dc.description.abstractMedical radiography is the use of radiation to “see through” a human body without breaching its integrity (surface). With computed tomography (CT)/cone beam computed tomography (CBCT), three-dimensional (3D) imaging can be produced. These imagings not only facilitate disease diagnosis but also enable computer-aided surgical planning/navigation. In dentistry, the common method for transfer of the virtual surgical planning to the patient (reality) is the use of surgical stent either with a preloaded planning (static) like a channel or a real time surgical navigation (dynamic) after registration with fiducial markers (RF). This paper describes using the corner of a cube as a radiopaque fiducial marker on an acrylic (plastic) stent, this RF allows robust calibration and registration of Cartesian (x, y, z)- coordinates for linking up the patient (reality) and the imaging (virtuality) and hence the surgical planning can be transferred in either static or dynamic way. The accuracy of computer-aided implant surgery was measured with reference to coordinates. In our preliminary model surgery, a dental implant was planned virtually and placed with preloaded surgical guide. The deviation of the placed implant apex from the planning was x=+0.56mm [more right], y=- 0.05mm [deeper], z=-0.26mm [more lingual]) which was within clinically 2mm safety range. For comparison with the virtual planning, the physically placed implant was CT/CBCT scanned and errors may be introduced. The difference of the actual implant apex to the virtual apex was x=0.00mm, y=+0.21mm [shallower], z=-1.35mm [more lingual] and this should be brought in mind when interpret the results.-
dc.languageeng-
dc.publisherSPIE - International Society for Optical Engineering. The Journal's web site is located at http://spie.org/x1848.xml?WT.svl=mddp2-
dc.relation.ispartofSPIE - International Society for Optical Engineering. Proceedings-
dc.rightsSPIE - International Society for Optical Engineering. Proceedings. Copyright © SPIE - International Society for Optical Engineering.-
dc.rightsCopyright notice format: Copyright 2015 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.-
dc.subjectCone beam computed tomography-
dc.subjectCartesian coordinates-
dc.subjectImplant surgical guide-
dc.subjectMapping-
dc.subjectRigid registration-
dc.titleImage calibration and registration in cone-beam computed tomogram for measuring the accuracy of computer-aided implant surgery-
dc.typeConference_Paper-
dc.identifier.emailLam, WYH: retlaw@hku.hk-
dc.identifier.emailLuk, HWK: wkluka@hkucc.hku.hk-
dc.identifier.emailGoto, TK: gototk@hku.hk-
dc.identifier.emailPow, EHN: ehnpow@hku.hk-
dc.identifier.authorityLuk, HWK=rp00008-
dc.identifier.authorityGoto, TK=rp01434-
dc.identifier.authorityPow, EHN=rp00030-
dc.identifier.doi10.1117/12.2083341-
dc.identifier.scopuseid_2-s2.0-84926685284-
dc.identifier.volume9405-
dc.identifier.spage94050A-1-
dc.identifier.epage94050A-12-
dc.publisher.placeUnited States-

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