• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

1991 Fiscal Year Final Research Report Summary

Development of Biplane Transespohageal Dopper Echocardiography as a New Cardiovascular Diagnostic Method

Research Project

Project/Area Number 01440058
Research Category

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

Allocation TypeSingle-year Grants
Research Field Thoracic surgery
Research InstitutionSaitama Medical School

Principal Investigator

OMOTO Ryozo  Saitama Medical School・Faculty of Medicine・Professor, 医学部, 教授 (80112647)

Co-Investigator(Kenkyū-buntansha) MATSUMURA Makoto  Saitama Medical School・Faculty of Medicine・Research Associate, 医学部, 助手 (40190508)
KYO Shunei  Saitama Medical School・Faculty of Medicine・Lecture, 医学部, 講師 (30153232)
YOKOTE Yuji  Saitama Medical School・Faculty of Medicine・Professor, 医学部, 教授 (10118656)
Project Period (FY) 1989 – 1991
Keywordsbiplane transesophageal probe / real time / matrix biplane / TEE probe / mitral regurgitation / aortic dissection / transcatheter intracardiac repair / pediatric matrix probe
Research Abstract

Color Doppler transesophageal echocardiography (TEE) is an imaging method of indispensable importance in the fields of cardiology and cardiac surgery. However, in the present state of the art there is a major limitation in TEE technology : only a transverse view can be obtained with the single-transducer TEE probe. In 1989 (the first year), in order to further improve the TEE technique we newly developed and tested clinically a biplane probe. To the best of our knowledge we are the first where a new biplane probe was used clinically. The biplane probe is 13.5 mm in diameter, and transverse and longitudinal transducers are mounted side by side on the same transesophageal shaft. Either transverse or longitudinal scan can be obtained and biplane images can be reproduced side by side screen simultaneously synchronizing to ECG. The probe was successfully used both intra-and postoperatively in 260 adult cardiovascular surgical patients. The specific diagnostic value of the biplane TEE was ob … More tained firstly in mitral regurgitation and aortic dissection.
In 1990 (the 2nd year), the biplane probe was used totally in 450 patients without any complication. Biplane TEE facilitated a three-dimensional understanding of cardiovascular structure and blood flow and provided new acoustic windows on the esophagus through longitudinal scanning. However, there were two major limitations in the biplane probe : (1) the two orthogonal transducers were separated and (2) biplane imaging was not real time but reproduced.
In 1991 (the 3rd year), to resolve these problems, we developed a new system that combines the use of matrix biplane transducer and real-time biplane imaging software. The matrix transducer is composed of two perpendicular phased arrays for transverse and longitudinal scans. In our clinical experience in 32 patients, the real-time matrix biplane imaging system has shown various advantages over the standard biplane technique. Additionally, we designed also successfully a pediatric matrix probe. These new devices suggest a new trend in TEE technology of the future. The biplane TEE has been established as one of valuable diagnostic methods and will be a standard clinical examination in the fields of cardiolog, cardiovascular surgery, and anesthesiology. Less

  • Research Products

    (17 results)

All Other

All Publications (17 results)

  • [Publications] R.Omoto,et: "Biplan Color Doppler Transesophageal Echocardiography:Its Impact on Cardiovascular Surgery and Further Technological Progress in the Probe,a Matrix Phased-Array Biplane Probe" Echocardiography. 6. 423-430 (1989)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] M.Matsumura,P M.Shah,S.Kyo,R.Omoto: "A New Look at Mitral Valve Pathology with Bi-plane Color Doppler Transesophageal Probe" Circulation. 80(SupplII). II579-II579 (1989)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] R.Omoto: "New Trend in Transesophagel Echocardiogeaphic Technology Use of Biplane Transesophageal Probr" Circulation. 82. 1507-1509 (1990)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] R.Omoto et al: "New Direction of Biplane Transesophageal Echocardiography with Special Emphasis on Real-Time Biplane Imaging and Matrix Phased Array Biplane Transducer" Echocardiography. 7. 691-698 (1990)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] R.Omoto: "Recent Advances in Transesophageal Echocardiogrphy:Development of Biplane and Pediatric Transesophageal Probes" American Journal of Cardiac Imaging. 4. 207-214 (1990)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] R.Omoto,S.Kyo,M.Matumura,P M.Shah,H.Adachi,Y,Yokote,Y,Kondo: "Evaluation of biplane color doppler transesophageal echcardiography in 200 consecutive patients" Circulation. 85. 1237-1247 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] R.Omoto,et: "Recent Techological progress in Transesophageal Clolr Doppler Flow Imaging with Special Reference to Newly Developed Biplane and Pediatric Probes.in Traneseophageal Echocardiography" Springer-Verlag,Heidelberg, 360 (1989)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 尾本 良三: "新科学大系第一巻「手術野における術中検査:超音波検査)" 中山書店, (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] "Biplane Color Doppler Transesophageal Echocardiography : Its Impact on Cardiovascular Surgery and Further Techological Progress in the Probe, a Matrix Phased-Array Biplane Probe" Echocardiography. 6(5). 423-430 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] "A New Look at Mitral Valva Pathology with Biplane Color Doppler Transesophaqeal Probe" Circulation. 80(Suppl II). 579-579 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] "New Trend Transesophagel Echocardiographic Technology Use of Biplane Transesophageal Probe" Circulation. 82(4). 1507-1509 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] "New Direction of Biplane Transesophageal Echocardiography with Special Emphasis on Real-Time Biplane Imaging and Matrix Phased-Array Biplane Transducer" Echocardiography. 7(6). 691-698 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] "Recent Advances in Transesophageal Echocardiogrphy : Development of biplanc and Pediatric Transesophageal Probes" American Journal of Cardiac Imaging. 4(3). 207-214 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] "Future Technical Prospects in Biplane Transesophageal Echocardiography : Use of Adult and Pediatric Biplane Matrix Probes Adult and Pediatric" Echocardiography. 8(6). 713-720 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] "Evaluation of biplane color doppler transesophageal echocardiography in 200 consecutive patients" Circulation. 9. 1237-1247 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] "Recent Technological Progress in Transesophageal Color Doppler Flow Imaging with Special Reference to Newly Developed Biplane and Pediatric Probes." Transesophageal Echocardiography. 21-26 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] "Transesophageal Doppler Echo Monitoring of Cardiac Function During Assist Circulation" Transesophageal Echocardiography. 221-228 (1989)

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

URL: 

Published: 1993-03-16  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi