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Assessment of liver elasticity and viscosity using ultrasound shear wave dispersion

Research Project

Project/Area Number 17K01423
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Medical systems
Research InstitutionTokyo Medical University

Principal Investigator

Sugimoto Katsutoshi  東京医科大学, 医学部, 准教授 (20385032)

Co-Investigator(Kenkyū-buntansha) 大城 久  自治医科大学, 医学部, 准教授 (60381513)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywords超音波 / エラストグラフィ / 弾性 / 粘性 / 肝臓 / 非アルコール性脂肪性肝炎 / NASH / 超音波エラストグラフィ / NASH / 男性 / Dispersion / 粘弾性
Outline of Final Research Achievements

Shear wave dispersion imaging (SWD) is a newly developed imaging technology for assessing the dispersion slope of shear waves (SWs), which is related to tissue viscosity in diffuse liver disease. Our preclinical and preliminary clinical studies have shown that SW speed is more useful than dispersion slope for predicting the degree of fibrosis and that dispersion slope is more useful than SW speed for predicting the degree of necroinflammation. Thus, dispersion slope, which reflects viscosity, may provide additional pathophysiological insight into diffuse liver disease.

Academic Significance and Societal Importance of the Research Achievements

現在、肥満人口の増加に伴い非アルコール性脂肪性肝炎(NASH)の増加が著しい。NASHの問題点は、放置すると肝硬変や肝細胞癌を発生することである。そのため、早期にNASHと診断することが必要である。しかし、NASHの診断には侵襲的な検査である肝生検が必要である。本科研費では、超音波エラストグラフィによる非侵襲的な方法でNASHと診断できる可能性が示唆された。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (5 results)

All 2020 2019 2018 2017

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 3 results) Presentation (1 results)

  • [Journal Article] Clinical utilization of shear wave dispersion imaging in diffuse liver disease.2020

    • Author(s)
      Sugimoto K, Moriyasu F, Oshiro H, Takeuchi H, Yoshimasu Y, Kasai Y, Itoi T.
    • Journal Title

      Ultrasonography.

      Volume: 39 Issue: 1 Pages: 3-10

    • DOI

      10.14366/usg.19031

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Value of Viscosity and Viscoelasticity Measurement in Patients with NAFLD Using Shear Wave Ultrasound Elastography2018

    • Author(s)
      杉本 勝俊, 森安 史典, 大城 久, 吉益 悠, 竹内 啓人, 笠井 美孝, 古市 好宏, 糸井 隆夫
    • Journal Title

      Kanzo

      Volume: 59 Issue: 7 Pages: 370-373

    • DOI

      10.2957/kanzo.59.370

    • NAID

      130007420154

    • ISSN
      0451-4203, 1881-3593
    • Year and Date
      2018-07-20
    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Viscoelasticity Measurement in Rat Livers Using Shear-Wave US Elastography.2018

    • Author(s)
      Sugimoto K, Moriyasu F, Oshiro H, Takeuchi H, Yoshimasu Y, Kasai Y, Furuichi Y, Itoi T.
    • Journal Title

      Ultrasound Med Biol.

      Volume: 44 Issue: 9 Pages: 2018-2024

    • DOI

      10.1016/j.ultrasmedbio.2018.05.008

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Assessment of liver elasticity and viscosity using ultrasound shear wave dispersion: a study of hepatic fibrosis and inflammation in a rat model2017

    • Author(s)
      杉本勝俊
    • Journal Title

      Kanzo

      Volume: 58 Issue: 9 Pages: 536-539

    • DOI

      10.2957/kanzo.58.536

    • NAID

      130006106570

    • ISSN
      0451-4203, 1881-3593
    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Accuracy of viscoelasticity measurement in assessing histologic parameters in patients with nonalcoholic fatty liver disease using shear wave US elastography2019

    • Author(s)
      Sugimoto K, Takeuchi H, Itoi T
    • Organizer
      Radiological Society of North America 2019
    • Related Report
      2019 Annual Research Report

URL: 

Published: 2017-04-28   Modified: 2021-02-19  

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