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TISSUE SHEAR MODULUS COMPUTED TOMOGRAPHY BASED ON ULTRASONIC RF-ECHO METHOD

Research Project

Project/Area Number 10480247
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Biomedical engineering/Biological material science
Research InstitutionSophia University

Principal Investigator

NAKAYAMA Kiyoshi  SOPHIA UNIVERSITY, DEPARTMENT OF ELECTRICAL AND ELECTRONICS ENGINEERING, PROFESSOR, 理工学部, 教授 (00053653)

Co-Investigator(Kenkyū-buntansha) KUBOTA Mitsuhiro  TOKAI UNIVERSITY, DEPARTMENT OF SURGERY, LECTURER, 医学部, 講師 (40119673)
SUZUKI Akifumi  SOPHIA UNIVERSITY, DEPARTMENT OF ELECTRICAL AND ELECTRONICS ENGINEERING, RESEARCH ASSOCIATE, 理工学部, 助手 (00221317)
SUMI Chikayoshi  SOPHIA UNIVERSITY, DEPARTMENT OF ELECTRICAL AND ELECTRONICS ENGINEERING, LECTURER, 理工学部, 講師 (40306981)
Project Period (FY) 1998 – 1999
Project Status Completed (Fiscal Year 1999)
Budget Amount *help
¥12,400,000 (Direct Cost: ¥12,400,000)
Fiscal Year 1999: ¥3,100,000 (Direct Cost: ¥3,100,000)
Fiscal Year 1998: ¥9,300,000 (Direct Cost: ¥9,300,000)
KeywordsULTRASOUND / SHEAR MODULUS / STRAIN / MEASUREMENT / RECONSTRUCTION / INVERSE PROBLEM / HUMAN IN VIVO BREAST TISSUE / IMAGING / ずり (せん断) 弾性率 / ブタばら肉
Research Abstract

An effective shear modulus reconstruction technique was developed which uses ultrasonic strain measurements for diagnosis of superficial tissues, I.e,, our previously developed ultrasonic strain measurement and shear modulus reconstruction methods are combined and enhanced. The technique realizes very low computational load, yet yields fairly high quantitativeness, high stability and spatial resolution, and large dynamic range. The feasibility is demonstrated on in vitro pork ribs and in vivo human breast tissues (fibroadenoma and scirrhous carcinoma). Although the stable shear modulus reconstruction images presented here were obtained in only 5 min using a typical workstation (Compaq XP 1000, 500 MHz), they nevertheless possess high stability and spatial resolution over a large dynamic range. It is therefore expected that this newly developed imaging technique has great potential to be practically used as an effective diagnostic tool for superficial tissues. Presently, a variety of in vivo shear modulus images are being obtained to clarify any limitations for further application as a differentiation technique.

Report

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

    (25 results)

All Other

All Publications (25 results)

  • [Publications] C. Sumi: "Suitable configurations of ultrasound transducer/ mechanical sources on strain measurement-based elasticity computed tomography"Proceedings of the European Medical & Biological Engineering conference EMBEC'99. 944-945 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] C. Sumi and M. Kubota: "Ultrasonic shear modulus imaging on superficial tissues - method demonstration on in vivo breast tissues."Proceedings of the European Medical & Biological Engineering conference EMBEC'99. 946-947 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] C. Sumi and M. Kubota: "Method demonstration of shear modulus reconstruction on superficial tissues"Proceedings of 1999 IEEE Ultrasonics Symposium. 496 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] C. Sumi and K SHibata: "Ultrasonic measurement of axial strain when tissue deforms dominant by in lateral direction-method demonstration and agech phantom"Proceedings of the 21st Annual International Conference of the IEEE Engineering in Med & Biol. Society. 511 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] C. Sumi: "Ultrasonic Shear modulus reconstruction on superficial tissues- method demonstration on in vitro pork rib"Proceedings of the 4th Asia-Pacific conference on Medical & Biological Engineering. 186 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] C. Sumi, R. Kaneko M. Kubota: "Shear modules imaging on superficial tissues - method evaluation on in vitro pork rib"Abstracts Book of 11th International Congress on the Ultrasonic Examination of the Breast. 377 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] C. Sumi: "Suitable configurations of ultrasound transducer/mechanical sources on strain-measurement-based elasticity computed tomography"Proceedings of the European Medical & Biological Engineering Conference EMBEC '99. 944-945 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] C. Sumi, and M. Kubota: "Ultrasonic shear modulus imaging on superficial tissues--- Method demonstration on in vivo breast tissue"Proceedings of the European Medical & Biological Engineering Conference EMBEC '99. 946-947 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] C. Sumi, and M. Kubota: "Method demonstration of shear modulus reconstruction on superficial tissues"Proceedings of 1999 IEEE Ultrasonics Symposium. (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] C. Sumi and K. Shibata: "Ultrasonic measurement of axial strain when tissue deforms dominantly in lateral direction ---Method demonstration on agar phantom"Proceedings of the 21st Annual International Conference of the IEEE Engineering in Medicine and Biology Society. 496 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] C. Sumi: "Ultrasonic shear modulus reconstruction on superficial tissues --- Method demonstration on in vitro pork rib"Proceedings of the 21st Annual International Conference of the IEEE Engineering in Medicine and Biology Society. 511 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] C. Sumi: "Ultrasonic strain-measurement-based shear modulus reconstruction when tissue deforms dominantly in lateral direction"Proceedings of the 4th Asia-Pacific Conference on Medical & Biological Engineering. 186 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] C. Sumi, R. Kaneko, and M. Kubota: "Shear modulus imaging on superficial tissues--- Method evaluation on in vitro pork rib"Abstracts Book of 11th International Congress on the Ultrasonic Examination of the Breast. 377 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] C.Sumi: "Fine elasticity imaging on utilizing the iterafive rf-echo phase matching method"IEEE Trans.Ultrasonics,Ferroelectrics and Frequency Control. 46・1. 158-166 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] C.Sumi,K.Nakayama,M.Kubota: "Asuifable ultrasonic-strain-measurement-based shear modulus reconstruction technique for superticial tissues"Physics in Medicive and Biology. (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] C.Sumi: "Suitable configurations of ultrasound transducer/mechanical sources on straid-measurement-based elasticity computed tomography"Proc.of the European Medical & Biological Engineering Conference EMBEC'99. 944-945 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] C.Sumi,K.Nakayama,M.Kubota: "Method demonstration of shear modulus reconstruction on superficical fissues"Proc.of 1999 IEEE Ultrascnics Symposium. 4pages will be publishel (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] C.Sumi,K.Shibata: "Ultrasonic measurement of axlal strain when tissue deforms dominantly in Dateral direction"Proc.of 21st Annual Interrational Conference of the IEEE Engineering in Medicine and Biology society. 496 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] C.Sumi: "Ultrasonic strain -measurement- based shear modulus veconetruetion when tissue deforms dominantly in latovelderection"Proc.of the 4th Aria-Pacific Conference on Medical&Biological Engineering. 186 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] C. Sumi: "A Robust Numerical Solution to Reconstruct a Globally Relative Shear Modulus Distribution from Strain Measurement" IEEE TRANSACTIONS ON MEDICAL IMAGING. 17・3. 419-428 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] C. Sumi: "Fine Elasticity Imaging Utilizing the Iterative RF-echo Phase Matching Method" IEEE TRANSACTIONS ON FEROELECTRONICS, AND FREQUENCY CONTROL. 46・1. 158-166 (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] C. Sumi: "Verification of the Feasibility of Elasticity Tomography" Proc, of 20th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. 826-829 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 炭 親良: "組織弾性断層法 (弾性CT) の開発に向けて" 日本超音波医学会基礎研究部会資料. 98・1. 11-13 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 炭 親良: "乳腺組織におけるせん断弾性定数 イメージング" 日本超音波医学会基礎研究部会資料. 98・4. (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] 炭 親良: "組織弾性断層法のシミュレーション超音波歪計測から弾性画像の再構成まで" 医用電子と生体工学. 36・supple. 347- (1998)

    • Related Report
      1998 Annual Research Report

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Published: 1998-04-01   Modified: 2016-04-21  

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