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Study on selection of optimal treatment strategy for head and neck cancer radiotherapy using clinical images and artificial intelligence

Research Project

Project/Area Number 22K15799
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 52040:Radiological sciences-related
Research InstitutionUniversity of Tsukuba

Principal Investigator

Baba Keiichiro  筑波大学, 附属病院, 病院講師 (80899633)

Project Period (FY) 2022-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2023: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2022: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Keywords放射線治療 / 人工知能 / 頭頸部癌 / 子宮頸癌 / ラジオミクス / 頭頚部癌
Outline of Research at the Start

放射線治療は頭頚部癌の治療において中心的役割を担っているが、病変の部位や形状などが多様性に富んでおり、高い治癒率を確保しつつ副作用を最低限にするため患者個々に対して適切な放射線治療計画を作成する必要がある。本研究では頭頚部癌に対して実際に治療を行った患者の臨床情報および治療前や治療途中の画像、放射線治療の線量分布の画像を、実際の治療後の再発の有無や再発の起こった部位などの情報とつなぎ合わせ人工知能による解析を行うことで、患者ごとに癌の治癒率を求めたり再発リスクが高い部位を予測したりできるプログラムの作成を行う。作成したプログラムにより、高い治癒率と低侵襲化を両立した治療プロセスの確立を目指す。

Outline of Final Research Achievements

In cases of head and neck cancer that underwent radiation therapy, image features at the lesion site were extracted using radiomics, and the correlation with outcomes such as survival time, local control rate, and recurrence-free survival rate was analyzed.
In addition, prognosis was analyzed for the treatment results of proton beam therapy for the nasal cavity and paranasal sinuses by dividing patients into three groups. It was found that the surgery + irradiation group and the group that was resectable but underwent irradiation had good overall survival rates, progression-free survival rates, and local control rates.
In addition, post-treatment prognosis was analyzed for cervical cancer patients using MRI images taken before and during treatment. Prognosis was analyzed by dividing patients into three groups according to the tumor shrinkage rate, and it was found that the greater the shrinkage rate, the better the overall survival rate.

Academic Significance and Societal Importance of the Research Achievements

頭頸部癌や子宮頸癌の画像的特徴から放射線治療後の予後を層別化し予測することで、新たに治療を行う患者や治療途中の患者において、根治に必要な放射線の線量や照射範囲を患者個々人に合わせて最適化することができる。すなわち、予後が不良の群においては照射線量を上げることで根治性を高め、予後が良好な群では線量を下げたり照射範囲を縮小したりことで周囲の正常臓器に対する有害事象の出現リスクを低減させることができ、放射線治療の治療成績や患者のQOLをより向上させることができると考える。

Report

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

    (2 results)

All 2023

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

  • [Journal Article] Proton beam therapy in multimodal treatment for locally advanced squamous cell carcinoma of the nasal cavity and paranasal sinus2023

    • Author(s)
      Saito Takashi、Nakayama Masahiro、Ohnishi Kayoko、Tanaka Shuho、Nakamura Masatoshi、Murakami Motohiro、Matsumoto Shin、Baba Keiichiro、Fujii Keitaro、Mizumoto Masashi、Tabuchi Keiji、Sakurai Hideyuki
    • Journal Title

      Radiation Oncology

      Volume: 18 Issue: 1 Pages: 106-106

    • DOI

      10.1186/s13014-023-02296-3

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Stage III-IVA子宮頸癌における中間評価での腫瘍縮小率と予後の関係2023

    • Author(s)
      斎藤 高, 角谷 泰輔, 馬場 敬一郎, 藤岡 伝, 白瀧 玄, 新津 光, 牧島 弘和, 沼尻 晴子, 水本 斉志, 中井 啓, 櫻井 英幸
    • Organizer
      日本放射線腫瘍学会第36回学術大会
    • Related Report
      2023 Annual Research Report

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Published: 2022-04-19   Modified: 2025-01-30  

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