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Article: Development of an opto-electronic positioning device for serial direct digital images of oral structures

TitleDevelopment of an opto-electronic positioning device for serial direct digital images of oral structures
Authors
Issue Date2000
PublisherWiley-Blackwell Publishing, Inc.. The Journal's web site is located at http://www.wiley.com/bw/journal.asp?ref=0022-3484&site=1
Citation
Journal Of Periodontal Research, 2000, v. 35 n. 4, p. 225-231 How to Cite?
AbstractThe aim of this study was to develop and test in vitro an opto-electronic positioning device for serial direct digital images of oral structures, i.e. to associate direct digital imaging with the principles of computer-aided surgery. This system registered positions of infrared light emitting diodes (LED) on carriers, establishing local coordinate systems. With LED markers attached on the sensor holder, the X-ray tube and a fix reference, the opto-electronic camera (Optotrak®) registered the geometric source/detector relation. A specially designed tracking and guidance software was developed which enabled the operator to reposition the X-ray source. A graphical user interface guided the operator in aligning 2 circles to the reference axis, one indicating the origin of the beam, the other its tip. In addition, depth control was provided. An in vitro calibration was performed. A sensor holder/bite block carried the Sens-A-Ray® sensor with a hair-cross. In front of the object a second hair-cross was fixed. A steel ball fixed to the center of the X-ray cone allowed to verify the alignment. The mean angulation error in the vertical plane was 0.06° and 0.04° in the horizontal one. Translation mean errors were small and ranged between -0.02 mm and 0.37 mm. The translation in the Z axis is negligible. This resulted in pairs of images suitable for digital subtraction. Although still in an experimental state, the results showed that opto-electronic navigation was useful to standardize projection geometry without any mechanical link and to achieve digital subtraction images based on direct digital imaging.
Persistent Identifierhttp://hdl.handle.net/10722/154113
ISSN
2015 Impact Factor: 2.474
2015 SCImago Journal Rankings: 0.932
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorMorea, Cen_US
dc.contributor.authorLanglotz, Fen_US
dc.contributor.authorScheer, Cen_US
dc.contributor.authorBürgin, Wen_US
dc.contributor.authorNolte, LPen_US
dc.contributor.authorLang, NPen_US
dc.contributor.authorBrägger, Uen_US
dc.date.accessioned2012-08-08T08:23:19Z-
dc.date.available2012-08-08T08:23:19Z-
dc.date.issued2000en_US
dc.identifier.citationJournal Of Periodontal Research, 2000, v. 35 n. 4, p. 225-231en_US
dc.identifier.issn0022-3484en_US
dc.identifier.urihttp://hdl.handle.net/10722/154113-
dc.description.abstractThe aim of this study was to develop and test in vitro an opto-electronic positioning device for serial direct digital images of oral structures, i.e. to associate direct digital imaging with the principles of computer-aided surgery. This system registered positions of infrared light emitting diodes (LED) on carriers, establishing local coordinate systems. With LED markers attached on the sensor holder, the X-ray tube and a fix reference, the opto-electronic camera (Optotrak®) registered the geometric source/detector relation. A specially designed tracking and guidance software was developed which enabled the operator to reposition the X-ray source. A graphical user interface guided the operator in aligning 2 circles to the reference axis, one indicating the origin of the beam, the other its tip. In addition, depth control was provided. An in vitro calibration was performed. A sensor holder/bite block carried the Sens-A-Ray® sensor with a hair-cross. In front of the object a second hair-cross was fixed. A steel ball fixed to the center of the X-ray cone allowed to verify the alignment. The mean angulation error in the vertical plane was 0.06° and 0.04° in the horizontal one. Translation mean errors were small and ranged between -0.02 mm and 0.37 mm. The translation in the Z axis is negligible. This resulted in pairs of images suitable for digital subtraction. Although still in an experimental state, the results showed that opto-electronic navigation was useful to standardize projection geometry without any mechanical link and to achieve digital subtraction images based on direct digital imaging.en_US
dc.languageengen_US
dc.publisherWiley-Blackwell Publishing, Inc.. The Journal's web site is located at http://www.wiley.com/bw/journal.asp?ref=0022-3484&site=1en_US
dc.relation.ispartofJournal of Periodontal Researchen_US
dc.subject.meshEquipment Designen_US
dc.subject.meshHumansen_US
dc.subject.meshMouth - Radiography - Surgeryen_US
dc.subject.meshOptics And Photonics - Instrumentationen_US
dc.subject.meshRadiography, Dental, Digital - Instrumentationen_US
dc.subject.meshSubtraction Technique - Instrumentationen_US
dc.subject.meshSurgery, Oral - Instrumentationen_US
dc.subject.meshTherapy, Computer-Assisted - Instrumentationen_US
dc.titleDevelopment of an opto-electronic positioning device for serial direct digital images of oral structuresen_US
dc.typeArticleen_US
dc.identifier.emailLang, NP:nplang@hkucc.hku.hken_US
dc.identifier.authorityLang, NP=rp00031en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.pmid10983883-
dc.identifier.scopuseid_2-s2.0-0034251710en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0034251710&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume35en_US
dc.identifier.issue4en_US
dc.identifier.spage225en_US
dc.identifier.epage231en_US
dc.identifier.isiWOS:000088461900007-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridMorea, C=6507209633en_US
dc.identifier.scopusauthoridLanglotz, F=7004160528en_US
dc.identifier.scopusauthoridScheer, C=7004530399en_US
dc.identifier.scopusauthoridBürgin, W=7003413848en_US
dc.identifier.scopusauthoridNolte, LP=35553907300en_US
dc.identifier.scopusauthoridLang, NP=7201577367en_US
dc.identifier.scopusauthoridBrägger, U=7005538598en_US

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