Yokoyama Yoichi 横山陽一

Researcher Number	20936744
Other IDs
Affiliation (Current)	2025: 慶應義塾大学, 医学部(信濃町), 助教
Affiliation (based on the past Project Information) *help	2023 – 2025: 慶應義塾大学, 医学部(信濃町), 助教
Review Section/Research Field	Principal Investigator Basic Section 52040:Radiological sciences-related Except Principal Investigator Basic Section 90110:Biomedical engineering-related / Basic Section 52040:Radiological sciences-related
Keywords	Principal Investigator 骨盤底障害 / 高齢者 / 立位CT / 術後 / 術前 / 骨盤臓器脱 / 排尿障害 / 排尿動態 Except Principal Investigator 放射線治療 / フレイル … More / 姿勢 / 機能性疾患 / 健康長寿 / 解明 / 病態解明 / 健康寿命 / computed tomography / 加齢 / 画像 / 座位 / 立位 / CT Less

Analysis of the Human Body Under Gravity Using Upright CT and Its Application to Future Medicine
- Principal Investigator
  
  陣崎雅弘
- Project Period (FY)
  2025 – 2028
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 90110:Biomedical engineering-related
- Research Institution
  Keio University
Elucidation of the pathology of pelvic floor dysfunction and urinary dysfunction using upright Computed TomographyPrincipal Investigator
- Principal Investigator
  
  横山陽一
- Project Period (FY)
  2023 – 2025
- Research Category
  
  Grant-in-Aid for Early-Career Scientists
- Review Section
  
  Basic Section 52040:Radiological sciences-related
- Research Institution
  Keio University
Elucidation of age-related changes and pathology and establishment of a method for early detection of diseases using upright CT: Aiming at extending healthy life expectancy
- Principal Investigator
  
  山田祥岳
- Project Period (FY)
  2023 – 2025
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 52040:Radiological sciences-related
- Research Institution
  Keio University

All 2025 2024 2023

All Journal Article Presentation Book

[Book] 理学療法ジャーナル 57巻9号　全身用立位CTを用いた重力下の人体の可視化2023
- Author(s)
  横山陽一, 山田祥岳, 山田稔, 池田織人, 陣崎雅弘
- Total Pages
  7
- Publisher
  医学書院
- Data Source
  KAKENHI-PROJECT-23K14925
[Journal Article] Simultaneous quantification of lower limb skeletal posture and ground reaction forces using upright computed tomography: Potential implications for osteoarthritis assessment and treatment2025
- Author(s)
  Ito Akimasa、Seki Hiroyuki、Sujino Asahi、Nagura Takeo、Yokoyama Yoichi、Yamada Minoru、Yamada Yoshitake、Jinzaki Masahiro、Ogihara Naomichi
- Journal Title
  
  Journal of Biomechanics
  
  Volume: 183 Pages: 112630-112630
- DOI
  10.1016/j.jbiomech.2025.112630
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-23K07214, KAKENHI-PROJECT-23KJ0701
[Journal Article] Validation of musculoskeletal segmentation model with uncertainty estimation for bone and muscle assessment in hip-to-knee clinical CT images2025
- Author(s)
  Soufi Mazen、Otake Yoshito、Iwasa Makoto、Uemura Keisuke、Hakotani Tomoki、Hashimoto Masahiro、Yamada Yoshitake、Yamada Minoru、Yokoyama Yoichi、Jinzaki Masahiro、Kusano Suzushi、Takao Masaki、Okada Seiji、Sugano Nobuhiko、Sato Yoshinobu
- Journal Title
  
  Scientific Reports
  
  Volume: 15 Issue: 1 Pages: 125-125
- DOI
  10.1038/s41598-024-83793-7
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-23K07214
[Journal Article] Finite element analysis of hip fracture risk in elderly female: The effects of soft tissue shape, fall direction, and interventions2024
- Author(s)
  Murakami Sotaro、Zhao Yuqing、Mizuno Koji、Yamada Minoru、Yokoyama Yoichi、Yamada Yoshitake、Jinzaki Masahiro
- Journal Title
  
  Journal of Biomechanics
  
  Volume: 172 Pages: 112199-112199
- DOI
  10.1016/j.jbiomech.2024.112199
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-23K07214
[Journal Article] Gender differences in spinal mobility during postural changes: a detailed analysis using upright CT2024
- Author(s)
  Mizukoshi Ryo、Yagi Mitsuru、Yamada Yoshitake、Yokoyama Yoichi、Yamada Minoru、Watanabe Kota、Nakamura Masaya、Nagura Takeo、Jinzaki Masahiro
- Journal Title
  
  Scientific Reports
  
  Volume: 14 Issue: 1 Pages: 9154-9154
- DOI
  10.1038/s41598-024-59840-8
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-23K07214, KAKENHI-PROJECT-21H03799
[Journal Article] Verification of acromion marker cluster and scapula spinal marker cluster methods for tracking shoulder kinematics: a comparative study with upright four-dimensional computed tomography2024
- Author(s)
  Yoshida Yuki、Matsumura Noboru、Yamada Yoshitake、Miyamoto Azusa、Oki Satoshi、Yamada Minoru、Yokoyama Yoichi、Nakamura Masaya、Nagura Takeo、Jinzaki Masahiro
- Journal Title
  
  BMC Musculoskeletal Disorders
  
  Volume: 25 Issue: 1 Pages: 589-589
- DOI
  10.1186/s12891-024-07717-2
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-23K07214
[Journal Article] Physiological rotation patterns of the thoracolumbar spine across different ages: A detailed analysis using upright CT2024
- Author(s)
  Mizukoshi Ryo、Yagi Mitsuru、Yamada Yoshitake、Yokoyama Yoichi、Yamada Minoru、Watanabe Kota、Nakamura Masaya、Nagura Takeo、Jinzaki Masahiro
- Journal Title
  
  Gait & Posture
  
  Volume: 114 Pages: 305-312
- DOI
  10.1016/j.gaitpost.2024.10.005
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23K07214
[Journal Article] Thoracic posture-related morphological changes in patients with pectus excavatum versus healthy controls2024
- Author(s)
  Suzuki Takahiro、Asakura Keisuke、Yamada Yoshitake、Masai Kyohei、Yamada Minoru、Yokoyama Yoichi、Okubo Yu、Kaseda Kaoru、Hishida Tomoyuki、Jinzaki Masahiro
- Journal Title
  
  European Journal of Cardio-Thoracic Surgery
  
  Volume: 66 Issue: 5
- DOI
  10.1093/ejcts/ezae408
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-23K07214
[Journal Article] Upright CT-based evaluation of the effects of posture on skull-base reconstruction after endoscopic endonasal surgery2024
- Author(s)
  Takahara Kento、Mizutani Katsuhiro、Yamada Yoshitake、Yamada Minoru、Yokoyama Yoichi、Yoshida Keisuke、Kosugi Kenzo、Ueda Ryo、Toda Masahiro、Jinzaki Masahiro
- Journal Title
  
  Scientific Reports
  
  Volume: 14 Issue: 1 Pages: 20303-20303
- DOI
  10.1038/s41598-024-71185-w
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-23K07214
[Journal Article] Differences in lung attenuation gradients between supine and standing positions in healthy participants on conventional/supine and upright computed tomography2024
- Author(s)
  Yagi Fumiko、Yamada Yoshitake、Yamada Minoru、Yokoyama Yoichi、Kozuka Atsunori、Hashimoto Masahiro、Otake Yoshito、Sato Yoshinobu、Chubachi Shotaro、Nozaki Taiki、Hatabu Hiroto、Fukunaga Koichi、Jinzaki Masahiro
- Journal Title
  
  Scientific Reports
  
  Volume: 14 Issue: 1 Pages: 21493-21493
- DOI
  10.1038/s41598-024-72786-1
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-23K07214
[Journal Article] Exploration of postural effects on the external jugular and diploic venous system using upright computed tomography scanning2024
- Author(s)
  Mizutani Katsuhiro、Miyauchi Tsubasa、Yamada Yoshitake、Yamada Minoru、Yokoyama Yoichi、Kosugi Kenzo、Yoshida Keisuke、Akiyama Takenori、Toda Masahiro、Jinzaki Masahiro
- Journal Title
  
  Neuroradiology
  
  Volume: - Issue: 6 Pages: 963-971
- DOI
  10.1007/s00234-024-03357-4
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23K07214
[Journal Article] Anatomical cardiac and electrocardiographic axes correlate in both upright and supine positions: an upright/supine CT study2023
- Author(s)
  Norimatsu Togo、Nakahara Takehiro、Yamada Yoshitake、Yokoyama Yoichi、Yamada Minoru、Narita Keiichi、Jinzaki Masahiro
- Journal Title
  
  Scientific Reports
  
  Volume: 13 Issue: 1 Pages: 18170-18170
- DOI
  10.1038/s41598-023-45528-y
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-21K07711, KAKENHI-PROJECT-23K07214
[Presentation] Frontiers in Cardiovascular CT: Evaluation of Postural Changes in the Venous System Using Upright CT.2025
- Author(s)
  山田祥岳, 山田稔, 横山陽一, 中原健裕, 陣崎雅弘.
- Organizer
  第89回日本循環器学会学術集会. 横浜 (パシフィコ横浜). (2025/3/30)
- Invited
- Data Source
  KAKENHI-PROJECT-23K07214
[Presentation] 仰臥位と立位における肺血管容積の比較.2025
- Author(s)
  池田織人, 山田祥岳, 山田稔, 横山陽一, モハメドアルシャハーリ, 陣崎雅弘.
- Organizer
  第100回心臓放射線研究会. 沖縄県那覇市 (那覇文化芸術劇場なはーと), (2025/2/15)
- Data Source
  KAKENHI-PROJECT-23K07214
[Presentation] 立位での排尿障害と骨盤臓器脱の画像診断2024
- Author(s)
  Yoichi Yokoyama, Yoshitake Yamada, Minoru Yamada, Orito Ikeda, Masahiro Jinzaki
- Organizer
  第83回日本医学放射線学会総会
- Invited
- Data Source
  KAKENHI-PROJECT-23K14925
[Presentation] Upright CT Imaging for Evaluating Pelvic Floor and Voiding Dysfunction in Standing Position: Studies and Future Perspectives2024
- Author(s)
  Yoichi Yokoyama, Yoshitake Yamada, Minoru Yamada, Orito Ikeda, Masahiro Jinzaki.
- Organizer
  第83回日本医学放射線学会総会
- Data Source
  KAKENHI-PROJECT-23K07214
[Presentation] Differences in lung attenuation gradients between supine and standing positions in healthy volunteers on conventional and upright computed tomography2024
- Author(s)
  Fumiko Yagi, Yoshitake Yamada, Minoru Yamada, Yoichi Yokoyama, Atsunori Kozuka, Masahiro Hashimoto, Shotaro Chubachi, Taiki Nozaki, Hiroto Hatabu, Masahiro Jinzaki
- Organizer
  第83回日本医学放射線学会総会
- Data Source
  KAKENHI-PROJECT-23K07214
[Presentation] MDCTの最近の進歩: 立位・座位CTの開発の経緯とその臨床評価.2024
- Author(s)
  山田稔, 山田祥岳, 横山陽一, Mohammed Alshahri, 池田織人, 祝田勇輝, 陣崎雅弘.
- Organizer
  最先端CT研究会202 SAMI分科会, 東京 (2024/07/27)
- Invited
- Data Source
  KAKENHI-PROJECT-23K07214
[Presentation] Aortic arch deformation from gravity2024
- Author(s)
  Takehiro Nakahara , Togo Norimatsu, Yoshitake Yamada, Minoru Yamada, Yoichi Yokoyama and Masahiro Jinzaki
- Organizer
  第83回日本医学放射線学会総会
- Data Source
  KAKENHI-PROJECT-23K07214
[Presentation] Differences in lung attenuation gradients between supine and standing positions in healthy volunteers on conventional and upright computed tomography.2024
- Author(s)
  Yagi F, Yamada Y, Yamada M, Yokoyama Y, Kozuka A, Hashimoto M, Chubachi S, Nozaki T, Hatabu H, Jinzaki M.
- Organizer
  第83回日本医学放射線学会総会, 横浜市(パシフィコ横浜), (2024/4/13)
- Data Source
  KAKENHI-PROJECT-23K07214
[Presentation] Prospective evaluation of non-contact, remote upright CT for lung imaging: Comfortability, efficiency and radiation dose compared to conventional supine CT.2024
- Author(s)
  Yamada M, Yamada Y, Yokoyama Y, Yagi F, Ikeda O, Jinzaki M.
- Organizer
  第127回日本医学物理学会学術大会, 横浜市(パシフィコ横浜), (2024/4/11)
- Data Source
  KAKENHI-PROJECT-23K07214
[Presentation] 立位CTを用いた骨盤底および排泄機能障害の評価：現在までの研究と今後の展望2024
- Author(s)
  Yoichi Yokoyama, Yoshitake Yamada, Minoru Yamada, Orito Ikeda, Masahiro Jinzaki
- Organizer
  第83回日本医学放射線学会総会
- Data Source
  KAKENHI-PROJECT-23K14925
[Presentation] Upright CT Imaging for Evaluating Pelvic Floor and Voiding Dysfunction in Standing Position: Studies and Future Perspectives.2024
- Author(s)
  Yokoyama Y, Yamada Y, Yamada M, Ikeda O, Jinzaki M.
- Organizer
  第83回日本医学放射線学会総会, 横浜市(パシフィコ横浜), (2024/4/12)
- Data Source
  KAKENHI-PROJECT-23K07214
[Presentation] Initial experience of Upright CT for pelvic organ prolapse - Comparison with clinical diagnosis -2024
- Author(s)
  Yoichi Yokoyama, Yoshitake Yamada, Minoru Yamada, Nobuyuki Tanaka, Yuu Teranishi, Masahiro Jinzaki
- Organizer
  KCR 2024
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23K14925
[Presentation] Aortic arch deformation from gravity.2024
- Author(s)
  Nakahara T, Norimatsu T, Yamada Y, Yamada M, Yokoyama Y, Jinzaki M.
- Organizer
  第83回日本医学放射線学会総会, 横浜市(パシフィコ横浜), (2024/4/11)
- Data Source
  KAKENHI-PROJECT-23K07214
[Presentation] Application of 320-Detector-Row Upright CT in Orthopedic Areas.2024
- Author(s)
  Yamada Y, Yamada M, Yokoyama Y, Nozaki T, Yagi F, Ikeda O, Alshahri M, Nagura T, Nakamura M, Jinzaki M.
- Organizer
  Radiological Society of North America 2024, 110th Scientific Assembly and Annual Meeting, Poster, Chicago, USA (2024/12/1)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23K07214
[Presentation] 全身用立位・座位 CT の臨床導入の最新状況2024
- Author(s)
  横山陽一、山田祥岳、山田稔、陣崎雅弘
- Organizer
  加齢画像研究会第13回学術集会
- Invited
- Data Source
  KAKENHI-PROJECT-23K14925
[Presentation] Initial Study of Remote Operation System in 320-slice Upright CT for Lung Imaging: Comparison with Conventional 320-slice Supine CT2024
- Author(s)
  Yamada M, Yamada Y, Yokoyama Y, Yagi F, Ikeda O, Jinzaki M.
- Organizer
  KCR 2024 Seoul, Korea (2024/10/2)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23K07214
[Presentation] 臥位から立位への体位変換に伴う大動脈弓性状の変化2023
- Author(s)
  中原健裕, 乗松東吾, 山田祥岳, 山田稔, 横山陽一, 陣崎雅弘
- Organizer
  第64回日本脈管学会総会
- Data Source
  KAKENHI-PROJECT-23K07214
[Presentation] Upright Chest CT Imaging2023
- Author(s)
  Yoshitake Yamada, Minoru Yamada, Yoichi Yokoyama Y, Shotaro Chubachi, Fumiko Yagi, Takehiro Nakahara, Taiki Nozaki, Koichi Fukunaga, Masahiro Jinzaki
- Organizer
  Radiological Society of North America, 109th Scientific Assembly and Annual Meeting
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23K07214
[Presentation] Evaluation of Male Voiding Function using Upright CT in the Standing Posture: A Pilot Study.2023
- Author(s)
  Yoichi Yokoyama, Yoshitake Yamada, Minoru Yamada, Fumiko Yagi, Masahiro Jinzaki
- Organizer
  Radiological Society of North America, 109th Scientific Assembly and Annual Meeting
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23K07214
[Presentation] Evaluation of Male Voiding Function using Upright CT in the Standing Posture : A Pilot Study2023
- Author(s)
  Yoichi Yokoyama, Yoshitake Yamada, Minoru Yamada, Fumiko Yagi, Masahiro Jinzaki
- Organizer
  RSNA 2023
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23K14925

1. 山田祥岳 (60383791)

# of Collaborated Projects: 2 results

# of Collaborated Products: 25 results
2. 山田稔 (60365434)

# of Collaborated Projects: 2 results

# of Collaborated Products: 25 results
3. 井上政則 (30338157)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
4. 陣崎雅弘 (80216259)

# of Collaborated Projects: 2 results

# of Collaborated Products: 26 results
5. 鈴木達也 (70627166)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
6. 山川裕之 (80465020)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
7. 遠藤維 (40599073)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
8. 田村謙太郎 (00528143)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
9. 小熊航平 (70973494)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
10. 米内俊祐 (00415431)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
11. 稲庭拓 (10446536)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
12. 稲本陽子 (70612547)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
13. 武田篤也 (80296699)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
14. 田中伸之 (60445244)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
15. 名倉武雄 (90306746)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
16. 中原健裕

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results

Yokoyama Yoichi 横山 陽一

Research Projects

Research Products

Co-Researchers

Analysis of the Human Body Under Gravity Using Upright CT and Its Application to Future Medicine

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Elucidation of the pathology of pelvic floor dysfunction and urinary dysfunction using upright Computed TomographyPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Elucidation of age-related changes and pathology and establishment of a method for early detection of diseases using upright CT: Aiming at extending healthy life expectancy

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

[Book] 理学療法ジャーナル 57巻9号 全身用立位CTを用いた重力下の人体の可視化2023

Author(s)

Total Pages

Publisher

Data Source

[Journal Article] Simultaneous quantification of lower limb skeletal posture and ground reaction forces using upright computed tomography: Potential implications for osteoarthritis assessment and treatment2025

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Validation of musculoskeletal segmentation model with uncertainty estimation for bone and muscle assessment in hip-to-knee clinical CT images2025

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Finite element analysis of hip fracture risk in elderly female: The effects of soft tissue shape, fall direction, and interventions2024

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Gender differences in spinal mobility during postural changes: a detailed analysis using upright CT2024

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Verification of acromion marker cluster and scapula spinal marker cluster methods for tracking shoulder kinematics: a comparative study with upright four-dimensional computed tomography2024

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Physiological rotation patterns of the thoracolumbar spine across different ages: A detailed analysis using upright CT2024

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Thoracic posture-related morphological changes in patients with pectus excavatum versus healthy controls2024

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Upright CT-based evaluation of the effects of posture on skull-base reconstruction after endoscopic endonasal surgery2024

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Differences in lung attenuation gradients between supine and standing positions in healthy participants on conventional/supine and upright computed tomography2024

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Exploration of postural effects on the external jugular and diploic venous system using upright computed tomography scanning2024

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Anatomical cardiac and electrocardiographic axes correlate in both upright and supine positions: an upright/supine CT study2023

Author(s)

Journal Title

Yokoyama Yoichi 横山陽一

[Book] 理学療法ジャーナル 57巻9号　全身用立位CTを用いた重力下の人体の可視化2023

[Presentation] 立位CTを用いた骨盤底および排泄機能障害の評価：現在までの研究と今後の展望2024