| Measurement accuracy of reconstructed 2-D images obtained by multi-slice helical computed tomography. | |
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MedLine Citation:
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PMID: 15355399 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The present dental reconstructed computed tomography (CT) images consist of continuously piled-up axial CT images that are perpendicular to the axial CT plane. In the mandibular posterior region, the angles of designed implants frequently differ from the angles perpendicular to the axial CT plane and the measurement of mandibular height is inaccurate. This study was performed to clarify the measurement accuracy of double-oblique reconstructed images in multi-slice helical CT, using dried mandibles. The mandibular height was measured from the alveolar crest immediately below the aluminum tube to the superior border of the mandibular canal using the double-oblique reconstructed images and the micro-CT average images of three semi-lateral dried mandibles. The mean of the differences between the double-oblique reconstructed images with a table pitch of 1.5 in a helical scan and the micro-CT average images was 0.31 mm. It is concluded that the accuracy of the double-oblique reconstructed image measurements with helical scan is high. So this double-oblique program can be applied to the imaging diagnosis in dental implant treatment. |
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Authors:
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Munetaka Naitoh; Akitoshi Katsumata; Eiji Nohara; Chiaki Ohsaki; Eiichiro Ariji |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Clinical oral implants research Volume: 15 ISSN: 0905-7161 ISO Abbreviation: Clin Oral Implants Res Publication Date: 2004 Oct |
Date Detail:
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Created Date: 2004-09-09 Completed Date: 2004-11-16 Revised Date: 2004-11-17 |
Medline Journal Info:
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Nlm Unique ID: 9105713 Medline TA: Clin Oral Implants Res Country: Denmark |
Other Details:
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Languages: eng Pagination: 570-4 Citation Subset: D |
Affiliation:
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Department of Oral and Maxillofacial Radiology, School of Dentistry, Aichi-Gakuin University, Japan. mune@dpc.aichi-gakuin.ac.jp |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Aluminum Alveolar Process / pathology, radiography Cephalometry / methods Dental Implants Humans Image Processing, Computer-Assisted / methods* Mandible / pathology, radiography* Microradiography / methods Radiographic Image Enhancement Tomography, Spiral Computed / methods* Tomography, X-Ray Computed / methods |
| Chemical | |
Reg. No./Substance:
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0/Dental Implants; 7429-90-5/Aluminum |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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