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Development of Instantaneous Intracaifiac 2-Dimensional Bloodfloe Imaging System by Non-Directional Ultrasonic Pulsa Wave

Research Project

Project/Area Number 61850075
Research Category

Grant-in-Aid for Developmental Scientific Research

Allocation TypeSingle-year Grants
Research Field 計測・制御工学
Research InstitutionOsaka University

Principal Investigator

KUNIHIRO CHIHARA  Fac. of Eng. Sci., Osaka Univ., Associate Prodessor, 基礎工学部, 助教授 (80029561)

Co-Investigator(Kenkyū-buntansha) AKIRA KITABATAKE  Mcdical School, oSaka Univ., Assistant Professor, 医学部, 講師 (00124769)
MICHITOSHI INOUE  Mcdical School, Osaka Univ., Professor, 医学部, 教授 (30028401)
辻本 浩章  大阪大学, 基礎工学部, 助手 (90172014)
若林 清右 (若林 淳右)  大阪大学, 基礎工学部, 助手 (70029461)
白江 公輔  大阪大学, 基礎工学部, 教授 (80029412)
HIROAKI TSUJImOTO  Fac. of Egn. Sci.,Osaka Univ., Assistant
KIMISUKE SHIRAE  Fac. of Eng. Sci., Osaka Univ., Proeffor
KIYOSUKE WAKABAYSHI  Fac. of Eng. Sci., Osaka univ.,Assistant
Project Period (FY) 1986 – 1987
Project Status Completed (Fiscal Year 1987)
Budget Amount *help
¥9,000,000 (Direct Cost: ¥9,000,000)
Fiscal Year 1987: ¥1,500,000 (Direct Cost: ¥1,500,000)
Fiscal Year 1986: ¥7,500,000 (Direct Cost: ¥7,500,000)
KeywordsUltrasound / Visualization / Doppler Method / Bloodflow / Echocardiogram / 高速走査法
Research Abstract

We cxecuted this research project for 2 yeara and got the following results.
1.The transducer array with 32 PZT elements was developed to generate the non-direelional ultraasonic pulse wave and to receive the echo signal from cardiac structure and the rec cells.
2.The high speed data acquisition system was developed to digiralizc with 10bits and 50 nsec by using the high speec AD converter and RAM chips.
3.The Doppler signal processor with a l-chip DSP was developed to preocess to phasc compoment of echo signal with 10 MIPS. And als, this programmable processor can proccss the smplitude component of the echo signal.
4. The sector image of multi wires in the watrer can be rcconstructed by thismethod. But, the hard asheet and the soft cube can't be reconstructed well.
5.In normal subjects, the 2-dimensional velocity vector was estimated from the beam component of the intracardiac bloodflow by a new method.
6.The crinical device will have need for the probe qwith the higher frequency than 5 MHz and to 40 signal processor boards.
7.The results of VSD subjects thow that this method is useful to get the information on the degree of the shunt flow.
8.The instantaneous imaging method using the non-diractional ultrasonic pulse wave was the effective means to measure the sector image of the high speed motion.

Report

(2 results)
  • 1987 Final Research Report Summary
  • 1986 Annual Research Report
  • Research Products

    (16 results)

All Other

All Publications (16 results)

  • [Publications] 中谷 大輔: 計測自動制御学会関西支部「計測・利御におけるディジタル信号処理」講演論文集. 2. 1-4 (1986)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] 竹野 浩: 電子情報通信学会研究会技術報告. HBE-86. 81-88 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] 中谷 大輔: 日本超音波医学会基礎技術研究会資料. BT-21. 17-22 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Yutaka Yoshida: proc of 2nd Japa -Chive Symp. on BME. 2. 82-83 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Kunihiro Chihara: proc of 9th IEEE EHBS. 1. 392-393 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] 水田 万美子: 日本自動制御協会シンポジウム(シグナル・システム・コントロール)論文集. 1. 49-52 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] 千原 国広: "センサ(第7章3節)" コロナ社, 240 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Daisuke NAKAYA: "A New High-Spped Scaning Method if The Ultrasonic Imaging." Proc. of Digital Signal Prccesiong in the Measurement and Control of SICE in Japan.2. 1-4 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Hiroshi TAKENO: "A Digital Signal Processor for The Time Sepies Signal" Technical Report in IEICE in Japan.MBE-86. 81-88 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Daisuke NAKAYA: "The Instantaneous Mcasurcmentment Syttem of Ultrasonic Image by The Aray Transducer" Technical Report of Soc. of Medical Ultrasonics in Japan.BT-21. 17-22 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Yutaka YOSHIDA: "Intracardisc Flow Vectoer Mapping on the Basis of Equation of Countinuty." Proc. of 2nd Japan-China Sympo. on BME.2. 82-83 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Kunihiro CHIHARA: "A New Ultrasounic Imaging Method of an Intracardiac Echocardiogram." Proc. of 9th Ann. Conf. of IEEE EMBS.1. 392-393 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Kunihiro CHIHaRA: CORONA Publishing Co., LTD.Sensor and Computer Applied Measurements, 240 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] 中谷大輔: 計測自動制御学会 「計測の制御におけるディジタル信号処理」講演論文集. 2. 1-4 (1986)

    • Related Report
      1986 Annual Research Report
  • [Publications] 中谷大輔: 日本超音波医学会基礎技術研究会資料. BT86-21. 17-22 (1987)

    • Related Report
      1986 Annual Research Report
  • [Publications] 千原国宏: 医用電子と生体工学. 25-特. (1987)

    • Related Report
      1986 Annual Research Report

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Published: 1987-03-31   Modified: 2016-04-21  

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