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1994 Fiscal Year Final Research Report Summary

Development of Three-Dimensional Ultrasonic Doppler Method of Measuring Spatial Distribution of Blood Flow Velocity

Research Project

Project/Area Number 05680755
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field Biomedical engineering/Biological material science
Research InstitutionUniversity of Tsukuba

Principal Investigator

SHIINA Tsuyoshi  Inst.of Information Sciences & Electronics Univ.of Tsukuba, Assistant Professor, 電子・情報工学系, 助教授 (40192603)

Co-Investigator(Kenkyū-buntansha) ITO Masayasu  Fact.of Technology.Tokyo Univ.Agriculture & Technology, Professor, 工学部, 教授
Project Period (FY) 1993 – 1994
Keywordsultrasonic measurement / doppler method / blood flow distribution / 3D display / vector of velocity / 2D arrayd element / 2D arrayd ultrasonic probe / non-invasive measurement
Research Abstract

Although the color doppler method is widely used, the image does not represent the true veleocity of blood flow because it can measure only one component along the beam direction of three-dimensional velocity.
We presented an idea of measuring three components of blood velocity at any point in the ROI by using two-dimensional array probe. The method has the following merits : real time measurement due to simple and parallel signal processing, and easier implementation compared with other methods due to the extension of conventional color doppler method.
In this work, we examined practical problems for implementation. At first the performance, e.g., spatial resolution, accuracy, sensitivity to S/N and their relation to aperture size were evaluated by simulation analysis and basic experiment using flow phantom. Next the way to display the velocity distribution was investigated because three components for each measured value are plotted in the three-dimensional space and its image must be comprehensible in clincal use. At last the practicability of the method was evaluated.

  • Research Products

    (10 results)

All Other

All Publications (10 results)

  • [Publications] T. Shiina:"Basic Investigation on Three Dimensional Color Doppler Method" Proc. of 8th Congress of the International Cardiac Doppler Society. (印刷中). (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 椎名 毅: "三次元カラードプラ法に関する実験的検討" 電気学会 医用・生体工学研究会資料. (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] K. Hamamoto: "An Investigation on Practicability of Reflection Tomography" Jap. J. Appl. Phys.Vol.33. 3181-3186 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] K. Hamamoto: "Reconstruction Method of Limited Angle Reflection Mode Diffraction Tomography Using Maximum Entropy Method" IEICE Trans. Fundatals. E76-A. 1212-1218 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 濱本和彦: "二次元アレイプローブを用いた三次元ドプラ血流計測法" 医用電子と生体工学. 第31巻特別号. 328- (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 別府慎太郎: "コントラストエコー法-基礎から臨床応用まで-" 最新医学社, 165 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.Shiina: "Basic Investigation on Tree-Dimensional Color Doppler Method" Proc.of 8th Congress of the International Cardiac Doppler Society. (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] K.Hamamoto, T.Shiina: "An Investigation on Practicability of Reflection Tomography" Jap.J.Appl.Phys. Vol.33. 3181-3186 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] K.Hamamoto, T.Shiina: "Reconstruction Method of Limited Angle Reflection Mode Diffraction Tomography Using Maximum Entropy Method" IEICE Trans.Fundatals. Vol.E76-A. 1212-1218 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] K.Hamamoto, T.Shiina: "Three-Dimensional Doppler Method of Measurement of Blood Flow Using Two-Dimensional Arrayd Probe" Suppl.31. 328 (1993)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1996-04-15  

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