Updated on 2024/04/03

写真a

 
TOMIHARA Jun
 
Organization
Graduate School of Medicine Assistant Professor
Undergraduate School
School of Health Sciences
Title
Assistant Professor
Contact information
メールアドレス
Homepage
https://researchmap.jp/tomihara_jun
External link

Degree 2

  1. 修士（医科学） （ 2022.3   順天堂大学 ） 

  2. 学士（保健学） （ 2017.3   名古屋大学 ） 

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Research Interests 6

  1. 放射線治療

  2. 定位放射線（SRT/SRS）

  3. SyncTraX

  4. EPID dosimetry

  5. DIBH

  6. 小線源治療

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Research Areas 4

  1. Life Science / Radiological sciences  / 放射線治療

  2. Life Science / Neurosurgery  / 定位放射線治療（SRT/SRS）

  3. Life Science / Radiological sciences  / 小線源治療（腔内照射/組織内照射）

  4. Life Science / Medical management and medical sociology  / 医療通訳

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Research History 3

  1. Nagoya University   Assistant Professor

    2023.12

  2. Juntendo University

    2020.5 - 2023.4

  3. Juntendo University

    2017.4 - 2023.12

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Education 3

  1. Juntendo University   Graduate School of Medicine   Department of Radiation Oncology

    2022.4

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    Country： Japan

  2. Juntendo University   Graduate School of Medicine   Department of Radiation Oncology

    2020.4 - 2022.3

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    Country： Japan

  3. Nagoya University   School of Medicine

    2013.4 - 2017.3

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    Country： Japan

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Professional Memberships 3

  1. 日本放射線技術学会

    2023.4

  2. 日本医学物理学会

    2020.10

  3. 日本診療放射線技師会

    2018.4

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Awards 3

  1. The Best Student Award in AOCMP 2022

    2022.12   Asia-Oceania Congress on Medical Physics  

    Jun Tomihara

  2. International Student Speaker Recognition

    2021.4   Localization accuracy of off-isocenter targets for brain stereotactic radiotherapy using SyncTraX FX4

    Jun Tomihara

  3. 東京都診療放射線技師会新人賞（平成３０年度優秀演題発表）

    2019.6   放射線部門における外国人患者対応への取組みについて

    富原潤

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Papers 3

  1. Dosimetric comparison of four-dimensional computed tomography based internal target volume against variations in respiratory motion during treatment between volumetric modulated arc therapy and three-dimensional conformal radiotherapy in lung stereotactic body radiotherapy. Reviewed

    Daimu Fujimoto, Jun Takatsu, Naoya Hara, Masaki Oshima, Jun Tomihara, Eisuke Segawa, Tatsuya Inoue, Naoto Shikama

    Radiological physics and technology   Vol. 17   page： 143 - 152   2023.11

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    Language：English   Publishing type：Research paper (scientific journal)  

    This study focused on the dosimetric impact of variations in respiratory motion during lung stereotactic body radiotherapy (SBRT). Dosimetric comparisons between volumetric modulated arc therapy (VMAT) and three-dimensional conformal radiotherapy (3DCRT) were performed using four-dimensional computed tomography (4DCT)-based internal target volumes (ITV). We created retrospective plans for ten patients with lung cancer who underwent SBRT using 3DCRT and VMAT techniques. A Delta4 Phantom + (ScandiDos, Uppsala, Sweden) was used to evaluate the dosimetric robustness of 4DCT-based ITV against variations in respiratory motion during treatment. We analyzed respiratory motion during treatment. Dose-volume histogram parameters were evaluated for the 95% dose (D95%) to the planning target volume (PTV) contoured on CT images obtained under free breathing. The correlations between patient respiratory parameters and dosimetric errors were also evaluated. In the phantom study, the average PTV D95% dose differences for all fractions were - 2.9 ± 4.4% (- 16.0 - 1.2%) and - 2.0 ± 2.8% (- 11.2 - 0.7%) for 3DCRT and VMAT, respectively. The average dose difference was < 3% for both 3DCRT and VMAT; however, in 5 out of 42 fractions in 3DCRT, the difference in PTV D95% was > 10%. Dosimetric errors were correlated with respiratory amplitude and velocity, and differences in respiratory amplitude between 4DCT and treatment days were the main factors causing dosimetric errors. The overall average dose error of the PTV D95% was small; however, both 3DCRT and VMAT cases exceeding 10% error were observed. Larger errors occurred with amplitude variation or baseline drift, indicating limited robustness of 4DCT-based ITV.

    DOI： 10.1007/s12194-023-00757-8

    PubMed

  2. Intracranial stereotactic radiotherapy in off-isocenter target with SyncTraX FX4 Reviewed

    Jun Tomihara, Jun Takatsu, Naoya Hara, Satoru Sugimoto, Naoto Shikama, Keisuke Sasai

    Physica Medica   Vol. 100   page： 105 - 111   2022.7

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    Authorship：Lead author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    DOI： 10.1016/j.ejmp.2022.06.020

  3. Intrafraction stability using full head mask for brain stereotactic radiotherapy Reviewed

    Jun Tomihara, Jun Takatsu, Satoru Sugimoto, Naoto Shikama, Keisuke Sasai

    Journal of Applied Clinical Medical Physics   Vol. 22 ( 9 ) page： 360 - 370   2021.9

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    Authorship：Lead author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：Wiley  

    DOI： 10.1002/acm2.13382

    Other Link： https://onlinelibrary.wiley.com/doi/full-xml/10.1002/acm2.13382

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MISC 2

  1. SyncTraXのIGRT支援機能Smart Alignerを利用した治療中の位置補正 Invited

    富原潤, 高津淳

    Medical Now   ( 92 ) page： 23 - 26   2023.3

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    Language：Japanese   Publishing type：Article, review, commentary, editorial, etc. (trade magazine, newspaper, online media)  

  2. Localization accuracy of off-isocenter multi-target brain stereotactic radiosurgery using SyncTraX FX4 International journal

    Jun Tomihara, Jun Takatsu, Naoya Hara, Naoto Shikama, Keisuke Sasai

    MEDICAL PHYSICS INTERNATIONAL   Vol. vol.8 ( No.2 )   2020.5

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    Authorship：Lead author   Language：English   Publishing type：Rapid communication, short report, research note, etc. (scientific journal)  

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Presentations 19

  1. Optimization of gamma analysis criteria of EPID transit dosimetry in left breast DIBH irradiation

    2023.11 

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    Event date： 2023.11 - 2023.12

    Language：Japanese   Presentation type：Oral presentation (general)  

  2. 肺腫瘍サイズ変化に伴うEPID transit dosimetryによる線量エラー検出精度

    原直哉, 高津淳, 礒邉哲, 大渕隼平, 遠藤京, 富原潤, 下村理紗, 村上直也, 鹿間直人

    日本放射線腫瘍学会第36回学術大会  2023.11 

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    Event date： 2023.11 - 2023.12

    Language：Japanese   Presentation type：Oral presentation (general)  

  3. SyncTraXを使用した多発脳転移に対する定位放射線治療 Invited

    富原潤

    第2回放射線治療品質保証講習会  2023.3 

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    Event date： 2023.3

    Language：Japanese   Presentation type：Public lecture, seminar, tutorial, course, or other speech  

  4. Evaluation of Dosimetric Errors due to Corrections of Intrafractional Setup Errors for all Couch Positions during Intracranial Stereotactic Radiotherapy using SyncTraX FX4

    Jun Tomihara, Satoru Sugimoto, Jun Takatsu, Naoya Hara, Naoto Shikama

    22nd Asia-Oceania Congress on Medical Physics  2022.12 

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    Event date： 2022.12

    Language：English   Presentation type：Oral presentation (general)  

  5. 前立腺の放射線治療におけるSmart Alignerを使用したマーカ照合の位置補正精度評価

    横山知香, 高津淳, 富原潤, 礒邉哲, 原直哉, 大島理規, 鹿間直人

    日本放射線腫瘍学会第35回学術大会  2022.11 

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    Event date： 2022.11

    Language：Japanese  

  6. In vivo dosimetryを用いた肺癌深吸気息止めVMATの腫瘍位置再現性評価

    下村理紗, 高津淳, 宮島春香, 大渕隼平, 富原潤, 礒邉哲, 原直哉, 鹿間直人

    第50回日本放射線技術学会秋季学術大会  2022.10 

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    Event date： 2022.10

    Language：Japanese  

  7. 動体追跡照射中のマーカ照合におけるターゲット位置精度評価

    軽部修平, 高津淳, 関ひかる, 富原潤, 横山知香, 礒邉哲, 原直哉, 鹿間直人

    第50回日本放射線技術学会秋季学術大会  2022.10 

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    Event date： 2022.10

    Language：Japanese   Presentation type：Oral presentation (general)  

  8. 前立腺定位放射線治療におけるコイル型マーカを使用したX線画像誘導の位置照合精度評価

    関ひかる, 高津淳, 宮島春香, 軽部修平, 富原潤, 横山知香, 礒邉哲, 原直哉, 鹿間直人

    第38回日本診療放射線技師学術大会  2022.9 

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    Event date： 2022.9

    Language：Japanese   Presentation type：Oral presentation (general)  

  9. 前立腺定位放射線治療におけるSmart Alignerを用いた金マーカ位置照合の精度評価

    横山知香, 高津淳, 富原潤, 関ひかる, 軽部修平, 礒邉哲, 原直哉, 大島理規, 鹿間直人, 笹井啓資

    第34回日本放射線腫瘍学会学術大会  2021.11 

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    Event date： 2021.11

    Language：Japanese   Presentation type：Oral presentation (general)  

  10. Daily patient quality assurance for left breast radiation therapy using in vivo transit dosimetry

    Naoya Hara, Jun Takatsu, Jun Tomihara, Akira Isobe, Naoto Shikama, Keisuke Sasai

    2020.4 

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    Language：English  

  11. 深吸気息止め左乳房照射に対するtransit doseを利用した位置精度検証の基礎検討

    富原潤, 原直哉, 礒邉哲, 大渕隼平, 軽部修平, 芳士戸治義, 高津淳, 鹿間直人, 笹井啓資

    2019年関東甲信越診療放射線技師技術大会  2019.6 

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    Language：Japanese  

  12. 放射線部門における外国人患者対応への取組みについて Invited

    富原潤, 木暮陽介, 范睿恒, ハンニトン, 谷本恵子, 福永一星, 稲毛秀一

    東京都診療放射線技師会 第83回日暮里塾ワンコインセミナー  2019.1 

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    Language：Japanese  

  13. 放射線部門における外国人患者対応への取組みについて

    富原潤, 木暮陽介, 范睿恒, ハンニトン, 谷本恵子, 福永一星, 稲毛秀一

    第34回日本診療放射線技師学術大会  2018.9 

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    Language：Japanese  

  14. 放射線部門における中国人患者対応への取組みについて Invited

    富原潤

    日本放射線技術学会 中国・四国支部国際化推進セミナー  2019.7 

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    Language：Japanese  

  15. 外国人診療放射線技師のキャリア形成について

    木暮陽介, 富原潤, 范睿恒, ハンニトン, 福永一星, 稲毛秀一

    第34回日本診療放射線技師学術大会  2018.9 

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    Language：Japanese  

  16. 台湾実習生における指導上の困難及びその関連要因

    范睿恒, 木暮陽介, 富原潤, ハンニトン, 福永一星, 稲毛秀一

    第34回日本診療放射線技師学術大会  2018.9 

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    Language：Japanese  

  17. 動体追跡放射線治療におけるアイソセンタとマーカの距離および回転誤差に伴う照射精度の評価

    横山知香, 高津淳, 富原潤, 加藤春香, 礒邉哲, 原直哉, 鹿間直人, 笹井啓資

    第34回高精度放射線外部照射部会学術大会  2021.3 

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    Language：Japanese  

  18. Localization accuracy of off-isocenter targets for brain stereotactic radiotherapy using SyncTraX FX4

    Jun Tomihara, Jun Takatsu, Naoya Hara, Naoto Shikama, Keisuke Sasai

    2021.4 

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    Language：English  

  19. Localization accuracy of off-isocenter multi-target brain stereotactic radiosurgery using SyncTraX FX4 International conference

    Jun Tomihara, Jun Takatsu, Naoya Hara, Naoto Shikama, Keisuke Sasai

    20th Asia-Oceania Congress on Medical Physics  2020.12 

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    Language：English   Presentation type：Oral presentation (general)  

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Teaching Experience (Off-campus) 10

  1. 基礎医学物理学実習

    2024.4 （名古屋大学 大学院医学系研究科）

  2. 医学物理学特論

    2024.4 （名古屋大学 大学院医学系研究科）

  3. 放射線治療技術学Ⅰ

    2024.4 （Nagoya University）

  4. 放射線治療技術学Ⅱ

    2024.4 （Nagoya University）

  5. 放射線治療技術学実習A

    2024.4 （Nagoya University）

  6. 放射線治療技術学実習B

    2024.4 （Nagoya University）

  7. 放射線治療精度管理学

    2024.4 （Nagoya University）

  8. 放射線治療計画システム学

    2024.4 （Nagoya University）

  9. キャリアデザインゼミナール

    2021.4 - 2023.3 （順天堂大学 保健医療学部診療放射線学科）

  10. 放射線治療技術学実習

    2021.4 - 2023.3 （順天堂大学 保健医療学部診療放射線学科）

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Academic Activities 1

  1. 日中看護国際シンポジウム 講演同時通訳

    Role(s)：Planning, management, etc.

    順天堂大学  2019.6

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    Type：Competition, symposium, etc. 

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