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J-GLOBAL ID:201901005225618140   Update date: Mar. 24, 2025

Ito Kei

イトウ ケイ | Ito Kei
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Affiliation and department:
Job title: Staff
Research field  (1): Radiology
Research keywords  (6): Radiation oncology ,  Stereotactic radiotherapy ,  Radiotherapy ,  Bone metastases ,  Cervical cancer ,  Head and neck cancer
Research theme for competitive and other funds  (6):
  • 2024 - 2025 脊椎転移の再照射 SBRT における咽頭・食道の耐容線量の解明
  • 2022 - 2025 Development of new treatment options in patients with cervical cancer who are unsuitable for intracavitary brachytherapy
  • 2020 - 2024 Maide-to-order radiation therapy using functional imaging for locally advanced non-small cell lung cancer
  • 2021 - 2022 子宮腔内照射が不適な子宮頸癌に対する定位放射線治療:第 I/II 相臨床試験
  • 2020 - 2021 転移性脊髄圧迫に対する分離術および定位照射:第二相試験
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Papers (56):
  • Kei Ito, Naoki Nakamura. Palliative Stereotactic Body Radiotherapy for Spinal and Non-Spinal Bone Metastases: Combining Tradition and Innovation. International Journal of Clinical Oncology. 2025
  • Tetsuo Saito, Naoto Shikama, Takeo Takahashi, Hideyuki Harada, Naoki Nakamura, Akifumi Notsu, Hiroki Shirato, Kazunari Yamada, Haruka Uezono, Yutaro Koide, et al. Health Utility of Pain Response Versus Nonresponse to Palliative Radiation Therapy for Symptomatic Bone Metastases: Analyses Based on Real-World Data from 26 Centers. Journal of palliative medicine. 2024
  • Kei Ito, Yujiro Nakajima, Shota Minakami, Yumiko Machitori, Yukio Hosomi, Kana Hashimoto, Makoto Saito, Keiko Nemoto Murofushi. Prophylactic cranial irradiation for limited-stage small-cell lung cancer in the modern magnetic resonance imaging era may be omitted: a propensity score-matched analysis. Journal of Radiation Research. 2024. 65. 6. 805-812
  • Ryosuke Kita, Kei Ito, Ryunosuke Machida, Yuta Sekino, Naoki Nakamura, Yujiro Nakajima, Tetsuo Saito, Nobuki Imano, Haruhiko Fukuda, Yoshinori Ito, et al. Randomized phase III study comparing re-irradiation stereotactic body radiotherapy and conventional radiotherapy for painful spinal metastases: Japan Clinical Oncology Group study JCOG2211 (RESCORE study). Japanese Journal of Clinical Oncology. 2024. 55. 2. 189-193
  • Fumiya Tsurumaki, Yujiro Nakajima, Kei Ito, Satoshi Kito, Riki Kikumura, Keiko Nemoto Murofushi, Atsunori Yorozu, Yukio Fujita. Optimal combination of collimator angles for dual-arc volumetric modulated arc therapy planning in stereotactic body radiotherapy for spinal metastases. Medical dosimetry : official journal of the American Association of Medical Dosimetrists. 2024
more...
MISC (34):
  • 伊藤慶. 脊椎 SBRT - 新たな武器を我々はどう使うのか. JASTRO NEWSLETTER. 2023. 147
  • Kei Ito. Stereotactic body radiotherapy for distant metastases. Japanese Journal of Urological Surgery. 2023. 36. 2. 138-143
  • 伊藤慶, 中島祐二朗. 転移性脊椎腫瘍に対する体幹部定位放射線治療の普及へ向けて. 月刊インナービジョン2022年11月号. 2022. 37. 11. 50-53
  • 川本 晃史, 斉藤 哲雄, 小杉 崇, 中村 直樹, 和田 仁, 戸成 綾子, 小川 洋史, 三橋 紀夫, 山田 和成, 高橋 健夫, et al. 出血性胃癌に対する緩和的放射線治療における症状スコアの経時的変化に関して 多施設共同前向き観察研究の探索的解析(JROSG 17-3). Palliative Care Research. 2022. 17. Suppl. S.208-S.208
  • Kei Ito. Stereotactic body radiotherapy for bone metastases. Japanese Journal of Clinical Urology. 2022. 76. 8. 542-545
more...
Books (8):
  • 放射線治療計画ガイドライン2024年版
    金原出版 2024 ISBN:430707131X
  • やさしくわかる放射線治療学改訂第2版
    Gakken 2024 ISBN:4055200528
  • 放射線治療学
    南山堂 2023 ISBN:4525270977
  • Stereotactic Body Radiation Therapy: Principles and Practices
    2023 ISBN:9819939771
  • がん・放射線療法 改訂第8版
    Gakken 2023 ISBN:4055200498
more...
Lectures and oral presentations  (107):
  • 転移性脊髄圧迫:新時代の幕開け
    (第38回 高精度放射線外部照射部会 2025)
  • SBRTを紐解く:臨床医が知るべき要点と展望
    (WOW! (講師) 2025)
  • SBRT for bone and soft tissue tumors and adverse effects induced by spine SBRT
    (The Korean Society of Spinal Tumor spring symposium 2025 (lecturer) 2025)
  • Management of Metastatic Epidural Spinal Cord Compression
    (The Korean Society of Spinal Tumor spring symposium 2025 (lecturer) 2025)
  • Stereotactic Body Radiotherapy for oligo-bone metastases
    (2025)
more...
Education (2):
  • 2014 - 2018 Juntendo University Graduate School of Medicine
  • 2005 - 2011 Juntendo University Faculty of Medicine
Professional career (1):
  • Ph.D. (Juntendo University)
Work history (6):
  • 2023/04 - 現在 千葉大学病院 放射線科 非常勤講師
  • 2023/04 - 現在 Komazawa University Faculty of Health Sciences
  • 2019/04 - 現在 Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital Radiology Staff
  • 2016/04 - 2019/03 Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital Radiology Clinical fellow
  • 2013/04 - 2016/03 Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital Radiology Senior resident
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Committee career (8):
  • 2023/06 - 現在 日本臨床腫瘍研究グループ (JCOG). 放射線治療グループ, グループ代表委員
  • 2023/03 - 現在 日本放射線腫瘍学会 (JASTRO). 放射線治療計画ガイドライン改訂ワーキンググループ (転移緩和) 委員
  • 2023/02 - 現在 日本放射線腫瘍学会 (JASTRO). 放射線治療専門医制度委員会試験小委員会 ジャンル別問題作成委員
  • 2022/10 - 現在 Tokyo Metropolitan Komagome Hospital Clinical Research Committee/Council
  • 2020/12 - 現在 Japanese Society for Radiation Oncology Guidelines on acute radiation dermatitis, member of systematic review
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Awards (16):
  • 2025/03 - 都立駒込病院 優秀英文論文賞
  • 2024/12 - 日本医学放射線学会 Japanese Journal of Radiology 最優秀論文賞
  • 2024/12 - 第37回 日本放射線腫瘍学会 至誠賞 第1位
  • 2024/11 - 第37回 日本放射線腫瘍学会 最優秀演題賞
  • 2024/07 - The Best Doctors in Japan 2022-2025
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Association Membership(s) (3):
American Society for Radiation Oncology (ASTRO) ,  Japanese Society for Radiation Oncology (JASTRO) ,  Japan Radiological Society (JRS)
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