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Establishment of artificial intelligence (AI)-based prediction of treatment efficacy for metastatic liver tumors

Research Project

Project/Area Number 19K08160
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 52040:Radiological sciences-related
Research InstitutionIwate Medical University

Principal Investigator

Tamura Akio  岩手医科大学, 医学部, 特任講師 (90714444)

Co-Investigator(Kenkyū-buntansha) 石田 和之  獨協医科大学, 医学部, 教授 (40444004)
Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2021: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2019: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords大腸がん肝転移 / CT / 人工知能 / 薬物治療 / 大腸癌 / 肝転移 / ノイズ低減 / 被ばく低減 / テクスチャー解析 / 大腸癌肝転移 / テクスチャ解析 / Radiomics
Outline of Research at the Start

・申請者らは、大腸癌肝転移に対する化学療法後の造影CTの形態評価が、病理組織学的な壊死の性質の違いを強く反映していることを明らかにした。
・本研究の目的は、人工知能(artificial intelligence=AI)を応用して化学療法後の大腸癌肝転移のCT画像の定量解析と病理組織診断を結びつけ、予後予測や治療効果予測へ反映させることである。
・計画している研究項目は①化学療法レジメンの種類による病理組織学的な壊死の違いの解明、②CT画像の定量解析により得られた結果と、術後病理組織標本上で得られた腫瘍壊死の割合、壊死の種類との関連の検討、③人工知能を応用した画像解析と予後予測の確立、である。

Outline of Final Research Achievements

After preoperative drug therapy for colorectal cancer liver metastases, when intratumoral necrosis was predominantly infarct-like necrosis (ILN) with few residual cells, the tumor margins had clear boundaries and no contrast effect, while when ILN was predominant but residual tumor cells were numerous, there was a contrast effect at the tumor margins. The type of necrosis was related to the morphology of the tumor margins, and the presence or absence of residual tumor cells and the presence or absence of a dangerous halo were related to the contrast effect at the tumor margins, suggesting that tumor angiogenesis affected the contrast effect.

Academic Significance and Societal Importance of the Research Achievements

大腸癌肝転移には術前化学療法を反映する組織像が存在し、化学療法のレジメンによってその組織所見は異なることが明らかになった。画像診断的にもそれぞれの組織像に対応した画像所見があり、サイズ以外の治療効果を反映した様々な所見に基づくことで、より客観性のある化学療法の組織学的効果判定が可能と考えられた。。

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (31 results)

All 2023 2022 2021 2020 2019 Other

All Journal Article (5 results) (of which Peer Reviewed: 4 results,  Open Access: 4 results) Presentation (20 results) (of which Int'l Joint Research: 6 results,  Invited: 1 results) Book (5 results) Remarks (1 results)

  • [Journal Article] Deep learning reconstruction allows low-dose imaging while maintaining image quality: comparison of deep learning reconstruction and hybrid iterative reconstruction in contrast-enhanced abdominal CT2022

    • Author(s)
      Tamura Akio、Mukaida Eisuke、Ota Yoshitaka、Nakamura Iku、Arakita Kazumasa、Yoshioka Kunihiro
    • Journal Title

      Quantitative Imaging in Medicine and Surgery

      Volume: 12 Issue: 5 Pages: 2977-2984

    • DOI

      10.21037/qims-21-1216

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A case of hepatic intraductal papillary neoplasm of the bile duct2022

    • Author(s)
      Mukaida Eisuke、Tamura Akio、Nishiya Masao、Katoh Kenichi、Sugai Tamotsu、Yoshioka Kunihiro
    • Journal Title

      BJR|case reports

      Volume: 8 Issue: 1

    • DOI

      10.1259/bjrcr.20210172

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Superior objective and subjective image quality of deep learning reconstruction for low-dose abdominal CT imaging in comparison with model-based iterative reconstruction and filtered back projection2021

    • Author(s)
      Tamura Akio、Mukaida Eisuke、Ota Yoshitaka、Kamata Masayoshi、Abe Shun、Yoshioka Kunihiro
    • Journal Title

      The British Journal of Radiology

      Volume: 94 Issue: 1123 Pages: 1357-1357

    • DOI

      10.1259/bjr.20201357

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Evaluation of peripheral enhancement on contrast-enhanced CT and corresponding pathological findings in colorectal liver metastases after preoperative chemotherapy2021

    • Author(s)
      Tamura Akio、Ishida Kazuyuki、Sone Misato、Yoshioka Kunihiro
    • Journal Title

      medRxiv

      Volume: -

    • DOI

      10.1101/2021.10.27.21265582

    • Related Report
      2021 Research-status Report
    • Open Access
  • [Journal Article] Feasibility of thin-slice abdominal CT in overweight patients using a vendor neutral image-based denoising algorithm: Assessment of image noise, contrast, and quality2019

    • Author(s)
      Tamura Akio、Nakayama Manabu、Ota Yoshitaka、Kamata Masayoshi、Hirota Yasuyuki、Sone Misato、Hamano Makoto、Tanaka Ryoichi、Yoshioka Kunihiro
    • Journal Title

      PLOS ONE

      Volume: 14 Issue: 12 Pages: e0226521-e0226521

    • DOI

      10.1371/journal.pone.0226521

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Surgery or Follow-up? That is the Question: The Diagnostic Dilemma of Intraductal Papillary Mucinous Neoplasms.2022

    • Author(s)
      Akio Tamura, Kazuyuki Ishida, Eisuke Mukaida, Kotaro Fujita, Kenichi Kato, Kunihiro Yoshioka.
    • Organizer
      Radiological Society of North America(RSNA)2022:108th Annual Meeting
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 下部胆管原発の癌肉腫の1例2022

    • Author(s)
      向井田瑛佑、田村明生、加藤健一、吉岡邦浩、西谷匡央、上杉憲幸、菅井有 、春日井聡、武田大樹、菅野将史、片桐弘勝、新田浩幸
    • Organizer
      第35回日本腹部放射線学会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 肝硬化性血管腫の3例2022

    • Author(s)
      向井田 瑛佑、藤田洸太朗、田村明生、加藤健一、吉岡邦浩、菅野将史、梅邑晃、 片桐弘勝、新田浩幸、伊藤勇馬、 西谷匡央、上杉憲幸、菅井有
    • Organizer
      第58回日本医学放射線学会秋季臨床大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] CT値を用いた骨格筋の脂肪浸潤解析による食道癌術前化学療法中のサルコペニアの評価2022

    • Author(s)
      田金恵、秋山有史、馬場誠朗、二階春香、遠藤史隆、田村明生、家子義朗、八重樫瑞典、梅邑晃、片桐弘勝、鈴木信、岩谷岳、新田浩幸、佐々木章
    • Organizer
      第44回 日本臨床栄養学会総会・第43回 日本臨床栄養協会総会
    • Related Report
      2022 Annual Research Report
  • [Presentation] CT による手術支援画像、画像解析の最前線─それを支える技術とは─2022

    • Author(s)
      田村 明生
    • Organizer
      第47回日本外科系連合学会学術集会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Characteristics of Deep Learning Reconstruction: Application in Clinical Practice2021

    • Author(s)
      Akio Tamura, Eisuke Mukaida, Yoshitaka Ota, Shun Abe, Iku Nakamura, Yuta Ueyama, Kunihiro Yoshioka
    • Organizer
      Radiological Society of North America(RSNA)2021:107th Annual Meeting.
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Classification of Malignant Features of IPMNs: Interobserver Agreement of CT Diagnosis2021

    • Author(s)
      Eisuke Mukaida, Akio Tamura, Manabu Nakayama, Makoto Hamano, Kenichi Kato, Kunihiro Yoshioka, Kazuyuki Ishida
    • Organizer
      Radiological Society of North America(RSNA)2021:107th Annual Meeting.
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Classification and detection of malignant features of IPMNs: Interobserver agreement of CT diagnosis2021

    • Author(s)
      Eisuke Mukaida, Akio Tamura, Manabu Nakayama, Makoto Hamano, Kenichi Kato, Kunihiro Yoshioka
    • Organizer
      第80回日本医学放射線学会総会
    • Related Report
      2021 Research-status Report
  • [Presentation] Colorectal liver metastasis: Interobserver agreement and pathological correlation of CT morphologic criteria2021

    • Author(s)
      Misato Sone, Akio Tamura, Kazuyuki Ishida, Kenichi Kato, Kunihiro Yoshioka
    • Organizer
      第80回日本医学放射線学会総会
    • Related Report
      2021 Research-status Report
  • [Presentation] Image Quality of Deep Learning Reconstruction using Auto Exposure Control2021

    • Author(s)
      Yoshitaka Ota, Takayoshi Chiba, Yasuyuki Kokami, Yuta Ueyama, Takuya Chiba, Tadashi Sasaki, Akio Tamura
    • Organizer
      第77回日本放射線技術学会総会学術大会
    • Related Report
      2021 Research-status Report
  • [Presentation] 浸潤性膵管癌を取り囲むように存在した自己免疫性膵炎の一例2021

    • Author(s)
      田村明生、加藤健一、石田和之、長谷川康、片桐弘勝、木村拓、新田浩幸、菅井有、吉岡邦浩、西谷匡央、佐藤綾香、向井田瑛祐
    • Organizer
      第34回日本腹部放射線学会
    • Related Report
      2021 Research-status Report
  • [Presentation] Deep learning reconstructionによる日常臨床における線量低減CT撮影の実行:腹部造影CTにおけるハイブリッド逐次近似再構成法との比較2021

    • Author(s)
      中村 育, 田村 明生, 太田 佳孝, 向井田 瑛佑, 吉岡 邦浩
    • Organizer
      第145回日本医学放射線学会北日本地方会
    • Related Report
      2021 Research-status Report
  • [Presentation] Colorectal Liver Metastasis: Imaging Features and Pathologic Findings after Preoperative Chemotherapy.2020

    • Author(s)
      A Tamura, K Ishida, T Ito, M Sone, K Kato, K Yoshioka
    • Organizer
      Radiological Society of North America(RSNA)2020:106th Annual Meeting.
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Basic Evaluation of Deep Learning Reconstruction for the Body in Area Detector CT.2020

    • Author(s)
      Yoshitaka Ota, Takayoshi Chiba, Yasuyuki Kokami, Yuta Ueyama, Takuya Chiba, Tadashi Sasaki, Akio Tamura.
    • Organizer
      第76回日本放射線技術学会総会学術大会
    • Related Report
      2020 Research-status Report
  • [Presentation] Examination of CT Value and Electron Density Relative to Water Measurement Accuracy of Dual Energy CT Using Deep Learning.2020

    • Author(s)
      Yasuyuki Kokami, Yoshitaka Ota, Takayoshi Chiba, Yuta Ueyama, Takuya Chiba, Tadashi Sasaki, Akio Tamura.
    • Organizer
      第76回日本放射線技術学会総会学術大会
    • Related Report
      2020 Research-status Report
  • [Presentation] Effect of Rotation Time on Virtual Monochromatic X-ray Image of Dual Energy CT Using Deep Learning.2020

    • Author(s)
      Takayoshi Chiba, Yoshitaka Ota, Yasuyuki Kokami, Yuta Ueyama, Takuya Chiba, Tadashi Sasaki, Akio Tamura.
    • Organizer
      第76回日本放射線技術学会総会学術大会
    • Related Report
      2020 Research-status Report
  • [Presentation] 肺結節体積計測における観察者間誤差と画像解析への影響2020

    • Author(s)
      伊藤知欣、田村明生、曽根美都、加藤健一、吉岡邦浩、太田佳孝、石田 和之
    • Organizer
      第143回日本医学放射線学会北日本地方会・第88回日本核医学会北日本地方会
    • Related Report
      2020 Research-status Report
  • [Presentation] イメージインタープリテーション:NF1に合併した多発GIST2020

    • Author(s)
      田村明生
    • Organizer
      第56回日本医学放射線学会秋季臨床大会
    • Related Report
      2020 Research-status Report
  • [Presentation] A Novel Imaging Protocol for Preoperative Arteriovenous 3D-CT for Pulmonary Surgery2019

    • Author(s)
      S Abe, RT; A Tamura, MD; Y Ota, RT; M Kamata; M Sone, MD; K Yoshioka, MD
    • Organizer
      Radiological Society of North America(RSNA)2019:105th Annual Meeting
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Pulmonary Nodules and Beyond: What Radiology Residents and Fellows Need to Know2019

    • Author(s)
      M Sone, MD; A Tamura, MD; E Mukaida; K Kato, MD; K Yoshioka, MD; K Ishida, MD
    • Organizer
      Radiological Society of North America(RSNA)2019:105th Annual Meeting
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Book] 月刊インナービジョン2023年2月号 RSNA 2022受賞報告 To surgery or to follow up? That is the question: The dilemma of diagnosis of IPMNs. (IPMNの画像診断と鑑別について)2023

    • Author(s)
      田村明生
    • Total Pages
      116
    • Publisher
      インナービジョン
    • ISBN
      9784910561233
    • Related Report
      2022 Annual Research Report
  • [Book] 臨床放射線 2022年5月号 67巻5号 特集 腹部の最新画像情報20222022

    • Author(s)
      田村 明生、向井田 瑛佑、加藤 健一、石田 和之、西谷 匡央、菅井 有、新田 浩幸、吉岡 邦浩
    • Total Pages
      124
    • Publisher
      金原出版
    • Related Report
      2022 Annual Research Report
  • [Book] 日獨医報第66巻第2号 大腸癌肝転移のための画像診断-薬物療法後の評価を中心に2022

    • Author(s)
      田村明生、石田和之
    • Total Pages
      57
    • Publisher
      バイエル薬品
    • Related Report
      2022 Annual Research Report
  • [Book] 月刊インナービジョン2021年4月号 RSNA 2020受賞報告2021

    • Author(s)
      田村 明生
    • Total Pages
      112
    • Publisher
      インナービジョン
    • ISBN
      9784902131994
    • Related Report
      2021 Research-status Report
  • [Book] 臨床画像 2019年6月号 特集:肝・胆画像診断のトピックス2019

    • Author(s)
      田村 明生
    • Total Pages
      115
    • Publisher
      メジカルビュー
    • Related Report
      2019 Research-status Report
  • [Remarks] This month's exhibit.

    • URL

      https://cdn.rsna.org/dps2021/media/PHEE-2/imagewisely/index.html

    • Related Report
      2022 Annual Research Report

URL: 

Published: 2019-04-18   Modified: 2024-01-30  

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