• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Establishment of a New Lung Cancer Image Analysis Method for Ultra-High Resolution CT: Search for Image Factors Contributing to Diagnostic Performance and AI Analysis

Research Project

Project/Area Number 21K07672
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 InstitutionOsaka University

Principal Investigator

Yanagawa Masahiro  大阪大学, 大学院医学系研究科, 准教授 (00546872)

Co-Investigator(Kenkyū-buntansha) 森井 英一  大阪大学, 大学院医学系研究科, 教授 (10283772)
鈴木 裕紀  大阪大学, 大学院医学系研究科, 特任助教(常勤) (20845599)
富山 憲幸  大阪大学, 大学院医学系研究科, 教授 (50294070)
木戸 尚治  大阪大学, 大学院医学系研究科, 特任教授(常勤) (90314814)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2023: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2022: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2021: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords超高精細CT / 肺腺癌 / PD-L1 / 人工知能 / Vision Transformer / LIME / 病理学的浸潤成分 / 遺伝子 / Vision transformer / 肺癌 / 診断能
Outline of Research at the Start

超高精細CTは、面内・体軸方向ともに従来CTの2倍の空間分解能を実現した臨床機である。研究代表者らは最近、超高精細CTが従来のCTに比べて、肺野領域における血管や気管支などの既存構造や微細な病変性状の描出に優れていることを見出し、肺腺癌の超高精細CTにおける細気管支途絶が、病理学的浸潤巣を診断する上で重要な所見であることを証明した。しかしながら、詳細に検討すべき画像所見は未だ多数残されており、定量評価においても超高精細CT用の市販の定量ソフトウェアも存在しない現状である。従って、超高精細CT画像には、診断能に寄与する未知の画像学的因子が多数存在すると考えられる。

Outline of Final Research Achievements

Ultra-high resolution CT is a device that has twice the spatial resolution of conventional CT in both the in-plane and body axis directions, and can obtain information on minute anatomical structures and histopathological image that could not be observed with conventional CT. In this study, we aimed to search for imaging factors and establish image analysis methods that are useful for accurate diagnosis of lung cancer and selection of a treatment plan by collecting image data of lung cancers with ultra-high resolution CT. Specifically, CT images of lung cancer were compared with histopathological images and genetic information, and quantitative analysis software was developed utilizing artificial intelligence. The visualization of the site that the developed artificial intelligence-based software focused on during diagnosis was examined, and the predictive diagnosis of the software for pathological invasiveness components was examined using clinical cases of lung adenocarcinoma.

Academic Significance and Societal Importance of the Research Achievements

放射線診断領域では、画像データをバイオマーカーとして活用し、画像定量値と多彩な臨床情報や分子学的情報と関連付けた研究が進んでおり、従来CTよりも情報量の多い超高精細CT画像を定量解析することは、遺伝子情報を含めた病理学的因子や予後因子を予測するための新しい画像学的因子の発見に繋がる可能性が高い。本研究の結果は、肺癌の的確な診断や治療方針の選択に役立つ新たな情報を提供し、肺癌の画像診断の発展につながる可能性が高く、その社会的意義は大きい。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (48 results)

All 2024 2023 2022 2021

All Journal Article (9 results) (of which Peer Reviewed: 9 results,  Open Access: 2 results) Presentation (36 results) (of which Int'l Joint Research: 13 results,  Invited: 29 results) Book (3 results)

  • [Journal Article] Seeing Is Not Always Believing: Discrepancies in Saliency Maps.2024

    • Author(s)
      Yanagawa Masahiro、Sato Junya.
    • Journal Title

      Radiol Artif Intell.

      Volume: 1 Issue: 1

    • DOI

      10.1148/ryai.230488

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Prediction of solid and micropapillary components in lung invasive adenocarcinoma:?radiomics analysis from high-spatial-resolution CT data with 1024 matrix2024

    • Author(s)
      Ninomiya Keisuke、Yanagawa Masahiro、Tsubamoto Mitsuko、Sato Yukihisa、Suzuki Yuki、Hata Akinori、Kikuchi Noriko、Yoshida Yuriko、Yamagata Kazuki、Doi Shuhei、Ogawa Ryo、Tokuda Yukiko、Kido Shoji、Tomiyama Noriyuki
    • Journal Title

      Japanese Journal of Radiology

      Volume: Online ahead of print Issue: 6 Pages: 1-9

    • DOI

      10.1007/s11604-024-01534-2

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] New trend in artificial intelligence-based assistive technology for thoracic imaging2023

    • Author(s)
      Yanagawa Masahiro、Ito Rintaro、Nozaki Taiki、Fujioka Tomoyuki、Yamada Akira、Fujita Shohei、Kamagata Koji、Fushimi Yasutaka、Tsuboyama Takahiro、Matsui Yusuke、Tatsugami Fuminari、Kawamura Mariko、Ueda Daiju、Fujima Noriyuki、Nakaura Takeshi、Hirata Kenji、Naganawa Shinji
    • Journal Title

      La radiologia medica

      Volume: 128 Issue: 10 Pages: 1236-1249

    • DOI

      10.1007/s11547-023-01691-w

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 胸部領域を対象とした画像診断AIの現状と展望2023

    • Author(s)
      梁川雅弘、秦明典、富山憲幸
    • Journal Title

      臨床画像

      Volume: 39 Pages: 692-698

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 人工知能による肺結節の診断2022

    • Author(s)
      梁川雅弘、鈴木裕紀、木戸尚治、富山憲幸
    • Journal Title

      画像診断

      Volume: 42

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] 肺癌―肺癌新時代における一般内科医の役割―AIによる画像診断2022

    • Author(s)
      梁川雅弘
    • Journal Title

      Medical Practice

      Volume: 39

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] 放射線科スーパーセレクション2022:肺結節の画像診断に必要な定量的解析と人工知能解析2022

    • Author(s)
      梁川雅弘
    • Journal Title

      臨床画像

      Volume: 38

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] 研究最前線 超空間分解能画像が画像診断学に与える可能性2022

    • Author(s)
      梁川雅弘
    • Journal Title

      大阪大学放射線科学基盤機構 機関誌「孟宗竹」

      Volume: -

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] 【CT再入門-新技術で何がわかる?-】超高精細CTの活用 癌の病期分類への影響 肺癌(特にT因子)2021

    • Author(s)
      梁川雅弘、富山憲幸
    • Journal Title

      画像診断

      Volume: 41 Pages: 964-965

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Presentation] Radiological-Histological Correlation On Ultra-High-Resolution CT Using Cadaveric Human Lungs: Nodule and Airway Analysis.2023

    • Author(s)
      Hata A, Yanagawa M, Yoshida Y, Ninomiya K, Doi S, Yamagata K, Kikuchi N, Ogawa R, Tokuda Y, Sakaue M, Kawabata S, Enchi Y, Tomiyama N.
    • Organizer
      Radiological Society of North America 109th Scientific Assembly and Annual Meeting.
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] High-Spatial-Resolution CT Can Improve Thoracic Imaging.2023

    • Author(s)
      Yanagawa M, Hata A, Kikuchi N, Yoshida Y, Ninomiya K, Doi S, Yamagata K, Ohira R, Tomiyama N.
    • Organizer
      The 21st Asian Oceanian Congress of Radiology.
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] CT Imaging: Lung Cancer with Driver Oncogene Mutation / Gene Translocation.2023

    • Author(s)
      Yanagawa M
    • Organizer
      East Meets West Imaging Update Streamed live and on-demand.
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] AI in Lung Cancer.2023

    • Author(s)
      Yanagawa M
    • Organizer
      The 5th Asian Congress of Thoracic Imaging & 22nd Annual Meeting of the Korean Society of Thoracic Radiology (ACTI 2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] High spatial resolution data improves diagnostic performance of machine-learning radiomics model: prediction for invasiveness adenocarcinoma of the lung.2023

    • Author(s)
      Yanagawa M, Nagatani Y, Hata A, Moriya H, Sumikawa H, Tsuchiya N, Ohno Y, Iwasawa T, Tomiyama N.
    • Organizer
      Radiological Society of North America 109th Scientific Assembly and Annual Meeting.
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Toward a New Era of CT Imaging: Current Status and Expectations of Photon Counting CT in the Thoracic Region.2023

    • Author(s)
      Yanagawa M, Hata A, Yoshida Y, Ninomiya K, Doi S, Yamagata K, Kikuchi N, Ogawa R, Tokuda Y, Fujita Y, Enchi Y, Tomiyama N.
    • Organizer
      Radiological Society of North America 109th Scientific Assembly and Annual Meeting.
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] AI 技術を用いた肺結節のCT画像診断:肺癌を中心に2023

    • Author(s)
      梁川雅弘
    • Organizer
      第14回呼吸機能イメージング研究会コアセッション(AI)
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] CT画像診断の新時代へ― 胸部領域におけるPhoton counting CTの現状と期待 ―2023

    • Author(s)
      梁川雅弘
    • Organizer
      第25回 関西Radiology Update講演会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] CT画像診断の新時代へ― Photon counting CTが胸部領域に与えるインパクト―2023

    • Author(s)
      梁川雅弘
    • Organizer
      第24回 放射線研究セミナー
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Photon counting CTによる胸部画像診断:現状と今後期待されること2023

    • Author(s)
      梁川雅弘
    • Organizer
      第48回播淡画像診断研究会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 胸部画像診断におけるPhoton Counting CTの可能性2023

    • Author(s)
      梁川雅弘
    • Organizer
      第42回日本医用画像工学会大会シンポジウム2
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 技術の深化と進化がもたらした次世代CT: Photon Counting CTが胸部画像診断に与える可能性2023

    • Author(s)
      梁川雅弘
    • Organizer
      第23回 千葉県CT研究会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] セッション1 高精細イメージング・超解像ADCT 高精細CTで読み解く肺の画像:定性解析からAIを含めた定量解析まで2023

    • Author(s)
      梁川雅弘
    • Organizer
      Global Standard CT Symposium2023
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 胸部腫瘍の画像診断:定性・定量解析やAIからのアプローチ2023

    • Author(s)
      梁川雅弘
    • Organizer
      胸部腫瘍画像研究会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Photon Counting CT:胸部領域での臨床応用と今後の期待2023

    • Author(s)
      梁川雅弘
    • Organizer
      令和5年度国公私立大学病院医療技術関係職員研修 (診療放射線技術者研修)
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 胸部腫瘍性病変の画像診断:臨床に必要な重要所見2023

    • Author(s)
      梁川雅弘
    • Organizer
      Advanced Diagnostic Imaging Conference in Hamamatsu (ADIC in Hamamatsu)
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 最新CTの胸部疾患への応用:高空間分解能による形態解析やAIを含めた定量解析2023

    • Author(s)
      梁川雅弘
    • Organizer
      第60回 福岡胸部放射線研究会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 『知って得する最新情報 ―胸部領域―』~ RSNA2023のトピックスを含めて ~2023

    • Author(s)
      梁川雅弘
    • Organizer
      ゲルべジャパンwebセミナー
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Symposium23 Gene and diagnostic imaging:Role and current status of diagnostic imaging in the era of genomic medicine:CT Imaging for Gene Prediction in Lung Cancer.2022

    • Author(s)
      Yanagawa M.
    • Organizer
      The 81th Annual Meeting of the Japan Radiological Society.
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] High-Spatial-Resolution CT from Normal-Resolution to Super High-Resolution data: Influence on Pathological Invasiveness Prediction of Lung Adenocarcinoma with Machine-Learning Radiomics Software.2022

    • Author(s)
      Yanagawa M, Moriya H, Sumikawa H, Tsuchiya N, Ohno Y, Iwasawa T, Hata A, Nagatani Y, Tomiyama N.
    • Organizer
      Radiological Society of North America 108th Scientific Assembly and Annual Meeting.
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Imaging Diagnosis as Biomarkers for Lung Cancer with Driver Oncogene Mutation / Gene Translocation in the Era of Personalized Medicine.2022

    • Author(s)
      Yanagawa M, Hata A, Kikuchi N, Yoshida Y, Yamagata K, Doi S, Ninomiya K, Ohira R, Tomiyama N.
    • Organizer
      Radiological Society of North America 108th Scientific Assembly and Annual Meeting.
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] コアセッション1「肺癌個別化医療における画像診断」肺癌の画像診断のためのAI2022

    • Author(s)
      梁川雅弘
    • Organizer
      第13回呼吸機能イメージング研究会
    • Related Report
      2022 Research-status Report 2021 Research-status Report
    • Invited
  • [Presentation] 総合診療セミナー(生涯教育・研修医セミナー)「肺癌個別化医療における画像診断」、呼吸器画像診断におけるAIとの付き合い方2022

    • Author(s)
      梁川雅弘
    • Organizer
      第41回日本画像医学会学術集会
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] シンポジウム1 AI 画像診断支援技術:臨床応用の最前線 胸部領域における AI 画像診断支援技術2022

    • Author(s)
      梁川雅弘
    • Organizer
      第58回日本医学放射線学会秋季臨床大会
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] 富士フィルムヘルスケア株式会社 共催セミナー16  AIを用いた画像診断の質の向上を目指して2022

    • Author(s)
      梁川雅弘
    • Organizer
      第58回日本医学放射線学会秋季臨床大会
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] ワークショップ14「高精度画像が肺癌診療にもたらすもの」超高精細CTが肺癌画像診断に与える影響: 形態および定量評価2022

    • Author(s)
      梁川雅弘
    • Organizer
      第63回日本肺癌学会学術集会
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] 「計算生命科学の基礎9」胸部画像診断におけるAI: 臨床応用、今後AIに期待すること2022

    • Author(s)
      梁川雅弘
    • Organizer
      遠隔インタラクティブ講義 神戸大学計算科学教育研究センター
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] Diagnostic imaging of the chest: from basics to the latest technology. Up-To-Date Diagnostic Imaging of Lung Cancer by CT:Focused on Lung Adenocarcinoma.2021

    • Author(s)
      Yanagawa M
    • Organizer
      The 18th Asian Oceanian Congress of Radiology.
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Thoracic Imaging on High-Spatial-Resolution CT: From Image Quality to Diagnostic Performance.2021

    • Author(s)
      Yanagawa M
    • Organizer
      The 18th Asian Oceanian Congress of Radiology.
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Quantitative Analysis and AI Analysis for Diagnostic Imaging of Pulmonary Nodules.2021

    • Author(s)
      Yanagawa M
    • Organizer
      The 80th Annual Meeting of the Japan Radiological Society.
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Throacic & AI Session 2-Thoracic imaging: Application of AI to diagnostic imaging.2021

    • Author(s)
      Yanagawa M
    • Organizer
      The 71th Royal Australian and New Zealand College of Radiologists Virtual Annual Scientific Meeting
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Chest CT Imaging: From Classical CT Signs To Up-To-Date CT Features.2021

    • Author(s)
      Yanagawa M, Hata A, Kikuchi N, Miyata T, Yoshida Y, Yamagata K, Doi S, Ninomiya K, Tomiyama N.
    • Organizer
      Radiological Society of North America 107th Scientific Assembly and Annual Meeting (Hybrid meeting).
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] 超高精細CTによる胸部画像診断の可能性:肺の解剖学的構造の見え方と肺腺癌診断能への影響2021

    • Author(s)
      梁川雅弘
    • Organizer
      Advanced Imaging Seminar 2021
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] 医療分野における人工知能の現状と将来:肺癌や前立腺癌などの画像診断への応用2021

    • Author(s)
      梁川雅弘
    • Organizer
      第100回西宮地域医療連携Webセミナー
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] 会長企画シンポジウム「肺腺癌の発生と進展、わかったこと、わからないこと」浸潤巣を意識した肺腺癌の画像診断 Up To Date2021

    • Author(s)
      梁川雅弘
    • Organizer
      第62回日本肺癌学会学術集会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] 学術委員会企画シンポジウム1「小型肺癌の標準治療はどう変わる?」小型肺癌の浸潤度評価: 画像学的浸潤巣や結節周囲環境について2021

    • Author(s)
      梁川雅弘
    • Organizer
      第62回日本肺癌学会学術集会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Book] 医学論文から学ぶ 臨床医のための疫学・統計 ―診療に生かせる読み解きかた―2023

    • Author(s)
      梁川雅弘、富山憲幸
    • Total Pages
      8
    • Publisher
      朝倉書店
    • Related Report
      2023 Annual Research Report
  • [Book] AIをもとにした画像診断と展望について 放射線治療学 改訂7版2023

    • Author(s)
      梁川雅弘、富山憲幸
    • Total Pages
      4
    • Publisher
      南山堂
    • Related Report
      2023 Annual Research Report
  • [Book] 「Global Standard CT Symposium 2023」高精細CTで読み解く肺の画像:定性解析からAIを含めた定量解析まで2023

    • Author(s)
      梁川雅弘
    • Total Pages
      2
    • Publisher
      INNERVISION
    • Related Report
      2023 Annual Research Report

URL: 

Published: 2021-04-28   Modified: 2025-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi