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Clinical application of 3D-CT in the maxillofacial region

Research Project

Project/Area Number 09671918
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 病態科学系歯学(含放射線系歯学)
Research InstitutionNIIGATA UNIVERSITY

Principal Investigator

ITO Jusuke  Faculty of Dentistry, NIIGATA UNIVERSITY, Professor, 歯学部, 教授 (50018371)

Co-Investigator(Kenkyū-buntansha) KATSURA Koji  Dental hospital, NIIGATA UNIVERSITY, assistant, 歯学部・附属病院, 助手 (30283021)
NAKAJIMA Shunichi  F.of Dentistry, NIIGATA UNIVERSITY, assistant, 歯学部, 助手 (70143790)
KOBAYASHI Fukiko  F.of Dentistry, NIIGATA UNIVERSITY, assistant, 歯学部, 助手 (00153635)
KOYAMA Junichi  Dental hospital, NIIGATA UNIVERSITY, assistant, 歯学部・附属病院, 助手 (40283022)
檜木 あゆみ (桧木 あゆみ)  新潟大学, 歯学部・附属病院, 助手 (70281011)
Project Period (FY) 1997 – 2000
Project Status Completed (Fiscal Year 2000)
Budget Amount *help
¥3,100,000 (Direct Cost: ¥3,100,000)
Fiscal Year 2000: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1999: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1998: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1997: ¥1,400,000 (Direct Cost: ¥1,400,000)
Keywords3D-CT / TMJ / dental implant / maxillofacial artery / facial deformity / exteral carotid artery / mandibular canal / mandibular fossa / TMJ / 顎動脈 / 外頚動脈 / MPI
Research Abstract

The purpose of this study was to establish clinical lapplication of three-dimensional diagnostic imaging in the field of maxillofacial lesions. We studied visualization of the vascular system in the maxillofacial regions, three-dimensional measurement of maxillofacial bony structures, and clinical application of three-dimensional images of the maxillary and mandibular bones for dental implants. Three-dimensional visualization of the vascular system in the maxillofacial regions : Vessels were three-dimensionally visualized with a volume Rendering technique after processing of imaging data acquired in patient with a malignant tumors. Major vessels were clearly visualized three-dimensionally in all patients. Peak CT values were 8.6 seconds earlier in arteries than in veins after starting the injection of contrast medium. So we could obtain images of the arterial phase in a period of 9 seconds after the administration of contrast material and thereafter venous phase dominant images.
Three-d … More imensional measurement of maxillofacial bony structures : Three-dimensional measurement was performed in patients with maxillofacial deformity. Patients were claasified according to the position of displaced TMJ discs. The distance between the top of the head of the mandible and the most anteriorly protruded end of the mentum was measured in a three-dimensional straight line. Measurement points were accurately determined by referring to three-dimensional images as well as axial images. Three-dimensional images were capable of measuring the degree of deviation of the jaw in patients with maxillofacial deformity. Clinical application of three-dimensional images of the maxillary and mandibular bones for dental implants :
An optimal three-dimensional imaging technique for dental implants was established. Measurement errors were less than 0.6 mm in multiple planar reconstruction images taken with the above mentioned technique. Preoperative three-dimensional images provided very useful information about the surface of the bone and its adjacent structures where dental implants were designed. Less

Report

(5 results)
  • 2000 Annual Research Report   Final Research Report Summary
  • 1999 Annual Research Report
  • 1998 Annual Research Report
  • 1997 Annual Research Report
  • Research Products

    (8 results)

All Other

All Publications (8 results)

  • [Publications] 小林富貴子: "デンタルインプラントにおけるヘリカルCTの有効利用"新潟歯学会雑誌. 29. 37-39 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Kobayashi F.: "Measurement of layer thickness using spread width of longitudinal image in helical CT."Oral Radiology. 15. 85-93 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Kobayashi F.: "The most appropriate scanning parameters on helical CT for preoperative dental implant planning."Oral Maxillofacial Radiology Today. 252-256 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Kobayshi F, Ito J: "Utility of dental implant with helical CT"Journal of Niigata Dental. Vol.29 No.1. 37-39 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Kobayashi F, Sasaki O, Nakajima S, Ito J: "Measurement of layer thickness using spread width of longitudinal image in helical CT"Journal of Oral Radiology. Vol.15 No. 2. 85-93 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Kobayashi F, Ito J, Katsura K, Koyama J, Hinoki A, hayashi T, Kato T: "The most appropriate scanning parameters on helical CT for preoperative dental implant planning"Oral and Maxillofacial Radiology Tody. 252-256 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 小林富貴子: "デンタルプラントにおけるヘリカルCTの有効利用"新潟歯学会雑誌. 29. 37-39 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Kobayashi F: "Measurement of layer thickness using spread width of longitudinal image in helical CT."Oral Radiology. 15. 85-93 (1999)

    • Related Report
      1999 Annual Research Report

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Published: 1997-04-01   Modified: 2016-04-21  

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