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Development of a surgical navigator for the cheiloplasty with real time three-dimensional measurement

Research Project

Project/Area Number 09557167
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section展開研究
Research Field Surgical dentistry
Research InstitutionOsaka University

Principal Investigator

MORI Yoshihide  Faculty of Dentistry, Osaka university Research associat, 歯学部, 助手 (00231639)

Co-Investigator(Kenkyū-buntansha) MINAMI Katsuhiro  Dental hospital, Osaka university Senior resident, 歯学部・附属病院, 医員
SUGAHARA Toshio  Faculty of Dentistry, Okayama university Professor, 歯学部, 教授 (10116048)
SAKUDA Masayoshi  Faculty of Dentistry, Osaka university Professor, 歯学部, 教授 (00028755)
TSUKAMOTO Yuichi  Dental hospital, Osaka university Senior resident, 歯学部・附属病院, 医員
MISHIMA Katsuaki  Dental hospital, Okayama university Assistant professor, 歯学部・附属病院, 講師 (60304317)
Project Period (FY) 1997 – 1999
Project Status Completed (Fiscal Year 1999)
Budget Amount *help
¥11,700,000 (Direct Cost: ¥11,700,000)
Fiscal Year 1999: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 1998: ¥1,200,000 (Direct Cost: ¥1,200,000)
Fiscal Year 1997: ¥9,600,000 (Direct Cost: ¥9,600,000)
KeywordsOral and maxillofacial Surgery / Three-dimensional Measurement / Cleft lip / Surgical navigator
Research Abstract

Selection of a rangefinder, examination of its measuring condition and accuracy, development of automatic extraction method of the facial landmarks from the data, and establishment of a evaluation method for facial morphology using the facial landmarks were respectively necessary for the development of a surgical navigator.
1. Selection of a rangefinder, examination of its measuring condition and accuracy
As the measuring time of the rangefinder selected in this research was within 1 second and its measuring error was within 0.4%, its performance satisfied the requirement of the operation navigator. And, it was proven that the reproducibility of measurement was satisfactory, if the range finder was made to be located in certain range from the face plane without the standard photographing. However, as the machine weight was 8kg and there was a problem in order to move or set over the operating table, some restriction was applied to photographing direction and method.
2. Development of auto … More matic extraction method of the facial landmarks from the data
The extraction of the facial landmarks as an important function of the navigator has been carried out until now by the manual operation. In this study, we thought that the automatic operation was indispensable for smooth operation of the navigator, and tried to realize it. Since the coordinate system setting and exact definition of the landmarks have not been made, it was difficult to accurately extract them until now. Then, we realized semiautomatic extraction of the landmarks with minimum manual operation by setting coordinate system on the face, making numerical definition of the landmarks, and setting field of view. At present, though it had not come to the perfect automation, it was succeeded in the development of the semi-automatic system in which the operation time drastically decreases.
3. Establishment of a evaluation method for facial morphology using the facial landmarks
We measured facial forms of infants' faces which were the objects of primary cheiloplasty and developed its evaluation method. Getting cooperation of the Ikeda health center, we measured facial forms of the infants who visit there for 3 months examination by the range finder as a control. And, facial forms of infants with cleft lip were measured in preoperative, postoperative, and the change was examined. As the result, it became possible that features of facial forms in cleft lip infants were quantitatively shown. Less

Report

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

    (22 results)

All Other

All Publications (22 results)

  • [Publications] Mori, Y., et al.: "Three Dimensional Evaluation of the Nasal Forms with the Forked Flap Technique in Bilateral Cleft Lip and Palate Children"Transaction of 8th International Congress on Cleft Palate and Related Craniofacial Anomalies. 552-555 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Yamada, T., Sugahara, T., Mori, Y., et al.: "Development of a 3-D Measurement and Evaluation System for Facial Forms with Liquid Crystal Range Finder and its Application to Cleft Surgery"Transaction of 8th International Congress on Cleft Palate and Related Craniofacial Anomalies. 81-94 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Yamada, T., Sugahara, T., Mori, Y., et al.: "Effects of Presurgical Orthopedic Treatment in Infants with Complete Bilateral Cleft Lip and Palate"Cleft Palate-Craniofacial Journal. 35. 227-232 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Yamada, T., Sugahara, T., Mori, Y., et al.: "Rapid Three-Dimensional Measuring System for Facial Surface Structure"Plastic and Reconstructive Surgery. 102. 2108-2113 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Yamada, T., Sugahara, T., Mori, Y., et al.: "Development of a 3-D measurement and evaluation system for facial forms with liquid crystal range finder"Computer Methods and Programs in Biomedicine. 58. 159-173 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 山田 朋弘、森 悦秀、他: "外鼻形態の3次元的計測による外鼻形成術前後の評価"日口外誌. 45(7). 427-434 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Mori, Y., et al: "Three Dimensional Evaluation of the Nasal Forms with the Forked Flap Technique in Bilateral Cleft Lip and Palate Children"Transaction of 8th International Congress on Cleft Palate and Related Craniofacial Anomalies. 552-555 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Yamada,T., Sugahara, T., Mori, Y., et al: "Development of a 3-D Measurement and Evaluation System for Facial Forms with Liquid Crystal Range Finder and its Application to Cleft Surgery"Transaction of 8th International Congress on Cleft Palate and Related Craniofacial Anomalies. 81-94 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Mishika, K., Sugahara, T., Mori, Y., et al: "Effects of Presurgical Orthopedic Treatment in Infants with Complete Bilateral Cleft Lip and Palate"Cleft Palate-Craniofacial Journal. 35. 227-232 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Yamada, T., Sugahara, T., Mori, Y., et al: "Rapid Three-Dimensional Measuring System for Facial Surface Structure"Plastic and Reconstructive Surgery. 102. 2108-2113 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Yamada, T., Sugahara, T., Mori, Y., et al: "Development of a 3-D measurement and evaluation system for facial forms with a liquid crystal range finder."Computer Methods and Programs in Biomedicine. 58. 159-173 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Yamada, T., Mori, Y., et al: "Quantitative three-dimensional evaluation before and after rhinoplasty"Jpn. J. Oral Maxillofac. Surg. 45. 427-434 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Yamada,T., et al.: "Development of a 3-D measurement an evaluation system for facial forms with a liquid crystal range finder"Computer Methods and Programs in Biomedicine. 58. 159-173 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 山田朋弘、他: "外鼻形態の3次元的計測による外鼻形成術前後の評価"日口外誌. 45(7). 427-434 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Mishika,K.,et al: "Effects of Presurgical Orthopedic Treatment in Infants with Complete Bilateral Cleft Lip and Palate" Claft Palate-Craniofacial Journal. 35. 227-232 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Mori,Y.,et al: "Rapid Three-Dimensional Measuring System for Facial Surface Structure" Plastic and Reconstructive Surgery. 102. 2108-2113 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Mori,Y., et al: "Development of a Scattered Processing Consultation System on the Network for Oral and Maxillofacial Surgery" Int.J.Oral Maxillofac.Surg.26. 190-190 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Mori,Y., et al: "Three Dimensional Evaluation of the Nasal Forms with the Forked Flap Technique in Bilateral Cleft Lip and Palate Children" Transaction of 8th International Congress on Cleft Palate and Related Craniofacial Anomalies. 552-555 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Sakuda,M., et al: "Quantitative Evaluation of Bone Graft in an Experimental Alveolar Cleft Model" Transaction of 8th International Congress on Cleft Palate and Related Craniofacial Anomalies. 932-936 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Sugahara,T., et al: "Development of a 3-D Measurement and Evaluation System for Facial Forms with Liquid Crystal Range Finder and its Application to Cleft Surgery" Transaction of 8th International Congress on Cleft Palate and Related Craniofacial Anomalies. 81-94 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 菅原利夫、他: "外科的矯正治療法の現況" 大阪府歯科医師会雑誌. 560. 2-9 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Mishima,K., et al: "Comparison of Palatal Forms in Complete Unilateral Cleft Lip and Palate Infants with and without a Hotz Plate" Transacyion of 8th International Congress on Cleft Palate and Related Craniofacial Anomalies. 394-397 (1997)

    • Related Report
      1997 Annual Research Report

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

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