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2000 Fiscal Year Final Research Report Summary

Skill of intravenous ultrasonic contrast agent for evaluation of microcirculation of human organs and its assessment for clinical use.

Research Project

Project/Area Number 10557070
Research Category

Grant-in-Aid for Scientific Research (B).

Allocation TypeSingle-year Grants
Section展開研究
Research Field Circulatory organs internal medicine
Research InstitutionOsaka University

Principal Investigator

BEPPU Shintaro  Osaka Univ.Med. School Professor, 医学部, 教授 (40113500)

Co-Investigator(Kenkyū-buntansha) KOBAYASHI Kaoru  Osaka Univ.Med. School Assistant, 医学部, 教授 (90256933)
INOUE Osamu  Osaka Univ.Med. School Professor, 医学部, 教授 (50159969)
FUJIWARA Hideaki  Osaka Univ.Med. School Professor, 医学部, 教授 (90107102)
ISHIKURA Fuminobu  Osaka Univ.Med. School Assistant, 医学部, 助手 (50303970)
Project Period (FY) 1998 – 2000
KeywordsUltrasound / Ischemic Heart Disease / Circulation / Contrast media / perfusion
Research Abstract

It has been needed to visualize the fine image of microcirculation for considerably lasting period from the standing point of accurate clinical diagnosis of perfusion abnormalities, such as myocardial ischemia. The method should be safe without any side-effect to the physical or hemodynamic conditions. In the present research, we studied contrast ultrasound technique using microbubbles with fluorocarbon gas, combined with second harmonic imaging and intermittent irradiation method. To investigate the optimum setup of the ultrasound equipment for imaging the contrast agent, effect of ultrasound frequency, acoustic power, interval of intermittent irradiation of ultrasound, position of focus was examined in vitro study. Consequently, the opacification of the myocardium and hemodynamic influence was examined in canine experiment. Finally, the non flow limiting coronary stenosis was produced by a snare. This study revealed that the the area at risk was detected after administration of vasodilating drugs by using contrast echocardiography.

  • Research Products

    (10 results)

All Other

All Publications (10 results)

  • [Publications] 小林春香,別府慎太郎 ほか: "経静脈性超音波造影剤Option(FS-69)による心筋染影のための装置側条件設定:動物実験での検討."J Med Ultrasonics. 27. 103-109 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 松下恵介,別府慎太郎 ほか: "超音波照射による超音波造影剤の一時的輝度増強効果(フラッシュ効果)に関する検討."J Med Ultrasonics. 27. 967-972 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 別府慎太郎: "心筋コントラストエコー法による検査法と臨床応用"循環器科. 48. 336-343 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 別府慎太郎: "心筋コントラストエコー法の原理と現状"Circulation Frontier. 4. 16-20 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 別府慎太郎: "間歇送信法をいかに活かすか."心エコー. 1. 270-276 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Shishido T, Beppu S, Matsuda H, et al.: "Assessment of flow mismatch with pharmacologic stress test on myocardial contrast echocardiography in a model of critical stenosis : Adenosine triphosphate and dipyridamole."J Am Soc Echocardiogr. 12. 257-265 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kobayashi H.Beppu S, Ishikura F, Ueda H, Matsushita K, Kashiwagi Y, Yakura S, Hamada T.: "Setting up ultrasonic equipment for myocardial contrast echocardiography with venous injection of Optison (FS-69) : an experimental study."J Med Ultrasonics. 27. 103-109 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Beppu S: "Myocardial contrast echo : state of art."Circulation Frontier. 4. 16-20 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Matsushita K, Beppu S, Ishikura F, Kobayashi H, Teruo Y, Kashiwagi Y, Yakura S.: "Flash effect of contrast microbubbles by ultrasound exposure."J Med Ultrasonics. 27. 967-972 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Hamada T, Beppu S, Ishikura F, Ueda H, Kashiwagi S, Yagura S, Kobayashi H.: "Effect of injection speed of intravenous contrast agent in reducing the acoustic shadowing : an experimental study with Optison (FS-69)."J Med Ultrasonics. 27. 1409-1413 (2000)

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

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Published: 2002-03-26  

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