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A diagnosis-supporting system for medical images using multimedia collaboration system.

Research Project

Project/Area Number 08458087
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field 情報システム学(含情報図書館学)
Research InstitutionNagoya University

Principal Investigator

YAMAUCHI Kazunobu  School of Medicine, Nagoya University, Professor, 医学部, 教授 (90126912)

Co-Investigator(Kenkyū-buntansha) HIRAI Makoto  School of Medicine Assistant Professor, 医学部, 講師 (90242875)
IKEDA Mitsuru  School of Medicine Associate Professor, 医学部, 助教授 (50184437)
ISHIGAKI Takeo  School of Medicine Professor, 医学部, 教授 (60094356)
Project Period (FY) 1996 – 1998
Project Status Completed (Fiscal Year 1998)
Budget Amount *help
¥7,700,000 (Direct Cost: ¥7,700,000)
Fiscal Year 1998: ¥300,000 (Direct Cost: ¥300,000)
Fiscal Year 1997: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1996: ¥6,900,000 (Direct Cost: ¥6,900,000)
KeywordsTelemedicine / ROC Analysis / ISDN64kbps / Evaluation of Medical Images / Transferring of Cineangiogram / 100VG-any LAN / Teleconference / 医用画像 / テレビ会議システム / テレメディスン
Research Abstract

We analyzed three types of videoconferencing system to implement telemedicine.
(1) The Internet videoconferencing is easy to use. Personal computers of notebook type with a modem card could perform videoconferencing by white board function. The quality of images will be sufficient for consultation but not for correct diagnosis. Transmitting relatively small graphic data of 15 KB or less in size will be practical. We needed a telephone line for collaboration.
(2) The system design and experimental use of multimedia telemedicine system for moving images were reported. As a network, 100VG-any LAN was used in the Nagoya University Hospital and ISDN 64kbps for communication with Nagoya Second Red Cross Hospital. Cineangiocardiogram was repeatedly expressed on workstation CRT displays at different locations, and diagnostic collaboration on moving images was performed using a teleconference system. 100VG-any LAN worked well as a multimedia system for moving images. However, ISDN 64kbps was not suitable for a teleconferencing of moving images at the moment. Three lines of JSDNG4kbps will be necessary for teleconferencing of moving images.
(3) Chest radiographs of 50 patients, including 25 with lung cancer were digitized at 100 dpi resolution and saved in the JPEG format at a low compression rate. Four respiratory specialists observed these images on a teleconference system display with 800^*600 pixels resolution. After one month, they observed original chest radiographs. ROC analysis was performed of the answers based on a 5-point confidence scale. The observer-specific As index values for the teleconference system ranged from 0.81 to 0.95, and the corresponding Az values for the conventional radiographs from 0.93 to 0.96. No differences were found between the teleconference system image and original images, showing that a video-teleconference system will be useful as a supplement to a diagnosis of chest X-ray films.

Report

(4 results)
  • 1998 Annual Research Report   Final Research Report Summary
  • 1997 Annual Research Report
  • 1996 Annual Research Report
  • Research Products

    (21 results)

All Other

All Publications (21 results)

  • [Publications] 山内一信: "遠隔医療の現実と可能性." 新医療. 267. 33-36 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 山内一信: "マルチメディアと医療." NANO OPHTHALMOLOGY. 16. 15-19 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 河合直樹: "インターネットによる病診連携の試み-簡易型テレビ会議の利用-." 日本医事新報. 3843. 28-31 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 山内一信: "新しい設備(1)遠隔医療システム." 病院設備. 40・3. 71-77 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Zhixing Xu: "Evaluation of a PC-Based Video-Teleconference System on Chest Radiographs" Journal of Telemedicine and Telecare. (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 山内一信: "21世紀の画像診断、テレビ会議システムでの画像評価." 新医療. 291. 120-122 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 岩田 彰: "情報通信網を用いた新しい医療.21世紀日本への展望-社会・環境・医療-(島岡清編)" リバティ書房, 229 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Yamauchi, Kazunobu: "Telemedicine, present status and future." Monthly Shiniryo. 267. 33-36 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Yamauchi, Kazunobu: "Multimedia and medical care." NANO OPHTHALMOLOGY. 16. 15-19 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Kawai, Naoki: "Hospital-clinic linkage by Internet using video-teleconference system." Japan Medical Journal. 3843. 28-31 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Yamauchi, Kazunobu: "Telemedicine system." Journal of Hospital Engineering Association of Japan. 40(3). 71-77 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Xu, Zhixing: "Evaluation of a PC-based video-teleconference system on chest radiographs." Journal of Telemedicine and Telecare.(in print). (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Yamauchi, Kazunobu: "Diagnosis of medical images in 21st century, evaluation of images in video-telemedicine." Monthly Shiniryo. 291. 120-122 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Iwata, Akira: New medicine using information network.Liberty Shobou, 229 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Zhixing Xu: "Evaluation of a PC-Based Video-Teleconference System on Chest Radiographs" Journal of Telemedicine and Telecare. (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] 山内一信: "21世紀の画像診断、テレビ会議システムでの画像評価" 新医療. 291. 120-122 (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] 岩田 彰: "21世紀日本への展望-社会・環境・医療-島岡清編" 株式会社リバティ書房, 229 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 山内一信: "遠隔医療の現実と可能性" 新医療. 267号. 33-36 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 山内一信: "マルチメディアと医療" NANO OPHTALMOLOGY. 16巻. 15-18 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 河合直樹: "インターネットによる病診連携の試み" 日本医事新報. 3843号. 28-31 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 山内一信: "遠隔動画伝送システムの構築" 第16回医療情報連合大会論文集. 134-135 (1996)

    • Related Report
      1996 Annual Research Report

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Published: 1996-04-01   Modified: 2016-04-21  

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