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Dual-energy CT-based quantitative evaluation of therapeutic response to transcatheter arterial chemoembolization in patients with hepatocellular carcinoma

Research Project

Project/Area Number 16K10369
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Radiation science
Research InstitutionKindai University

Principal Investigator

HYODO Tomoko  近畿大学, 医学部, 講師 (40403836)

Co-Investigator(Kenkyū-buntansha) 村上 卓道  神戸大学, 医学研究科, 教授 (20252653)
Research Collaborator KONO yuki  
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Keywords医療・福祉 / X線 / dual-energy CT / デュアルエナジーCT / 癌 / 肝動脈化学塞栓療法 / 物質弁別 / 肝細胞癌
Outline of Final Research Achievements

Transarterial chemoembolization (TACE) using ethiodized oil (Lipiodol 480 Injection 10 ml; Lp), (Lp-TACE) is a widely used and accepted treatment for patients with intermediate-stage hypervascular hepatocellular carcinoma (HCC). This prospective study assessed the feasibility of quantitative evaluation of Lp retention using iodine density images from dual-energy CT for predicting local recurrence of HCC after Lp-TACE. We performed a phantom experiment which proved that CT attenuation values saturated at 3071 HU, while measured iodine density showed excellent linearity. In a clinical study, morphological parameters derived from iodine density images showed higher hazard ratios for local recurrence of HCC than visual grades.

Academic Significance and Societal Importance of the Research Achievements

肝細胞癌に対する肝動脈化学塞栓療法のうちLp-TACE 1ヶ月後以降の単純CTでみられる腫瘍へのリピオドール集積は腫瘍内壊死を反映し、その集積欠損に一致して早期濃染がみられた場合、腫瘍の遺残ないし局所再発を示唆する。CTによる治療効果判定は従来、視覚評価でなされており、判定基準は確立されていない。本研究で考案したヨード密度画像を用いた形態解析は、より客観性の高い効果判定を行える可能性を示すものである。肝細胞癌治療の選択肢が拡大してきた近年の状況下で、本研究成果は治療戦略の標準化に寄与しうる。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (11 results)

All 2019 2018 2017

All Journal Article (3 results) (of which Open Access: 2 results,  Peer Reviewed: 1 results) Presentation (8 results) (of which Int'l Joint Research: 2 results,  Invited: 2 results)

  • [Journal Article] Hepatic steatosis and fibrosis: evaluation with CT imaging2018

    • Author(s)
      Hyodo Tomoko、Yada Norihisa、Maenishi Osamu、Matsuki Mitsuru、Murakami Takamichi
    • Journal Title

      Kanzo

      Volume: 59 Issue: 8 Pages: 393-406

    • DOI

      10.2957/kanzo.59.393

    • NAID

      130007483595

    • ISSN
      0451-4203, 1881-3593
    • Year and Date
      2018-08-20
    • Related Report
      2018 Annual Research Report
    • Open Access
  • [Journal Article] Dual energy CTの最新動向と今後の展望2018

    • Author(s)
      兵頭朋子
    • Journal Title

      インナービジョン

      Volume: 33 Pages: 2-7

    • Related Report
      2018 Annual Research Report
  • [Journal Article] Identification of elemental weight fraction and mass density of humanoid tissue-equivalent materials using dual energy computed tomography2017

    • Author(s)
      Kohei Shimomura, Fujio Araki, Fujio ArakiEmail the author Fujio Araki, Yuki Kono, Yoshiyuki Asai, Takamichi Murakami, Tomoko Hyodo, Masahiko Okumura, Kenji Matsumoto, Hajime Monzen, Yasumasa Nishimura
    • Journal Title

      Physica Medica: European Journal of Medical Physics

      Volume: 39 Pages: 59-66

    • DOI

      10.1016/j.ejmp.2017.05.060

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 特別講演2: 上腹部画像診断とDual Energy CTの有用性について2019

    • Author(s)
      兵頭朋子
    • Organizer
      第24回関西GECT研究会
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] シンポジウム2:肝癌治療の画像的効果判定-分子標的治療薬を中心に. conventional TACEのヨード密度画像による治療効果判定2019

    • Author(s)
      兵頭朋子, 柳生行伸, 河野雄輝, 沼本勲, 鶴﨑正勝, 上嶋一臣, 工藤正俊, 石井一成
    • Organizer
      第25回肝血流動態・機能イメージ研究会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Iodine Density Imaging using Dual-energy CT in Patients with Hepatocellular Carcinoma After Transcatheter Arterial Chemoembolization: Morphological Operations of Ethiodized Oil Retention for Predicting Tumor Recurrence2019

    • Author(s)
      Hyodo T, Yagyu Y, Kono Y, Tsurusaki M, Ueshima K, Numoto I, Ishii K
    • Organizer
      The 31st European Congress of Radiology
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] シンポジウム1 放射線治療に役立つ新たな画像診断技術: CT、MRでみる肝細胞癌の治療後変化2018

    • Author(s)
      兵頭朋子
    • Organizer
      日本放射線腫瘍学会第31回学術大会
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] 肝動脈塞栓術後の肝細胞癌局所再発予測:ヨード密度画像によるリピオドール定量2017

    • Author(s)
      兵頭朋子, 柳生行伸, 沼本勲男, 鶴﨑正勝, 任誠雲, 上嶋一臣, 工藤正俊, 村上卓道
    • Organizer
      第75回日本医学放射線学会総会
    • Place of Presentation
      パシフィコ横浜(横浜市)
    • Year and Date
      2017-04-13
    • Related Report
      2016 Research-status Report
  • [Presentation] Accuracy of the Virtual Unenhancement Algorithm for Dual-Energy CT: Experimental Assessment on a Swine Liver Phantom2017

    • Author(s)
      河野雄輝, 霜村康平, 渡邊翔太, 小坂浩之, 山田浩二, 兵頭朋子, 真田 茂
    • Organizer
      第73回日本放射線技術学会総会学術大会
    • Place of Presentation
      パシフィコ横浜(横浜市)
    • Year and Date
      2017-04-13
    • Related Report
      2016 Research-status Report
  • [Presentation] 脂肪肝ファントムを用いた仮想単純CTの精度検証2017

    • Author(s)
      兵頭朋子, 河野雄輝, 村上卓道
    • Organizer
      第36回 日本画像医学会
    • Place of Presentation
      ステーションコンファレンス東京(東京都)
    • Year and Date
      2017-02-25
    • Related Report
      2016 Research-status Report
  • [Presentation] Iodine Density Imaging using Dual-energy CT in Patients with Hepatocellular Carcinoma After Transcatheter Arterial Chemoembolization: Quantitative Assessment of Ethiodized Oil Retention for Predicting Tumor Recurrence2017

    • Author(s)
      Tomoko Hyodo, Yukinobu Yagyu, Yuki Kono, Teruyoshi Oda, Takashi Saitou, Takamichi Murakami, Isao Numoto, Kosuke Sasaki, Kazuomi Ueshima
    • Organizer
      第103回北米放射線学会 (The 103rd Scientific Assembly and Annual Meeting of the Radiological Society of North America)
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research

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Published: 2016-04-21   Modified: 2020-03-30  

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