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The ultrasound-guided breast-conserving surgery after neoadjuvant chemotherapy with the help of image fusion

Research Project

Project/Area Number 15K10070
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field General surgery
Research InstitutionShowa University

Principal Investigator

YOSHIDA MIWA  昭和大学, 医学部, 講師 (30556098)

Co-Investigator(Kenkyū-buntansha) 榎戸 克年  昭和大学, 医学部, 講師 (70596056)
高丸 智子  昭和大学, 医学部, 講師 (00404624)
明石 定子  昭和大学, 医学部, 准教授 (60523199)
Project Period (FY) 2015-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2017: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2015: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Keywords乳癌術前化学療法 / 画像融合機能 / 乳房超音波
Outline of Final Research Achievements

The image fusion function equipped ultrasound diagnosis apparatus can display the same section of a real-time ultrasound image and a previously acquired CT or MR image synchronously with each other. In 27 cases of breast-conserving surgery after preoperative chemotherapy for breast cancer, guided by ultrasound with the image fusion of real-time ultrasound images and pre-therapy CT images, we identified both the tumor extent before and after treatment and determined the optimal excision line of breasts. Of them, only in 2 cases, microscopically cancer cells were observed on the surgical margins. Our data suggested that the ultrasound-guided tumor localization with the image fusion is helpful for efficiently and appropriately determining the excision line in breast-conserving surgery after preoperative chemotherapy, even in the case where it is difficult to define the extent of residual cancerous lesions by the conventional ultrasound.

Academic Significance and Societal Importance of the Research Achievements

乳癌術前化学療法が著効した症例では、腫瘍の位置の同定および乳腺切除線の決定が難しい。スキンタトゥーや超音波によって識別できるマーカーで治療前の腫瘍部位をマーキングする方法が、術前化学療法後に腫瘍の位置を特定するのに有用であることが報告されているが、これらは本邦では保険収載されていない。
本研究では、乳癌術前化学療法後の乳房温存手術において、リアルタイムの超音波画像と保険適用で治療前に施行されたCT画像との画像融合を併用した超音波ガイドによる腫瘍の局在化が、効率的かつ適切に切除線を決定する低侵襲の方法として有用であることが示唆され、今後の臨床診療への応用が期待される。

Report

(5 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (6 results)

All 2019 2018 2016

All Presentation (6 results) (of which Int'l Joint Research: 1 results)

  • [Presentation] The ultrasound-guided tumor localization with image fusion system after neoadjuvant chemotherapy2019

    • Author(s)
      Miwa Yoshida
    • Organizer
      European Congress of Radiology 2019
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 画像融合機能搭載超音波ナビゲーションを用いた乳癌術前化学療法後の乳房温存手術2019

    • Author(s)
      吉田 美和
    • Organizer
      第119回 日本外科学会定期学術集会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 乳癌術前化学療法後の乳房温存手術における画像融合機能搭載超音波ナビゲーションの有用性2019

    • Author(s)
      吉田 美和
    • Organizer
      第27回日本乳癌学会学術総会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 画像融合機能搭載超音波ナビゲーションを用いた乳癌術前化学療法後の乳房温存手術2018

    • Author(s)
      吉田 美和
    • Organizer
      第41回日本乳腺甲状腺超音波医学会学術集会
    • Related Report
      2018 Annual Research Report
  • [Presentation] バーチャルソノグラフィを活用する - NAC前後での活用 -2018

    • Author(s)
      吉田 美和
    • Organizer
      第41回日本乳腺甲状腺超音波医学会学術集会
    • Related Report
      2018 Annual Research Report
  • [Presentation] The application of ultrasonographic navigation with image fusion system (V-navi/ RVS) to breast surgery after neoadjuvant chemotherapy2016

    • Author(s)
      吉田 美和
    • Organizer
      日本超音波医学会第89回学術集会
    • Place of Presentation
      京都
    • Year and Date
      2016-05-27
    • Related Report
      2016 Research-status Report

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Published: 2015-04-16   Modified: 2020-03-30  

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