Personnel Information

写真a

HANAZAWA Ryouichi


Job title

Graduate Student
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Graduate School 【 display / non-display 】

  • The University of Tokyo, Master's Course, 2020.03, Completed

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Campus Career 【 display / non-display 】

  • 2020.04
    -
    2021.03
    Tokyo Medical and Dental University， (Old Organization)Medical Hospital， Central Clinical Facilities， Clinical Research Center， Project Researcher
  • 2021.04
    -
    2021.05
    Tokyo Medical and Dental University， Graduate School of Medical and Dental Sciences， Medical and Dental Sciences， Division of Public Health， Department of Global Health Promotion， Graduate Student
  • 2021.06
    -
    Now
    Tokyo Medical and Dental University， Graduate School of Medical and Dental Sciences， Medical and Dental Sciences， Division of Public Health， Department of Clinical Biostatistics， Graduate Student
  • 2022.04
    -
    2023.02
    Tokyo Medical and Dental University， ， Medical Innovation Promotion Center， Project Assistant Professor
  • 2023.03
    -
    Now
    Tokyo Medical and Dental University， -， -， Project Assistant Professor
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Published Papers & Misc 【 display / non-display 】

  1. Fujita K, Sato Y, Hanazawa R, Sagawa H, Ishikawa M, Fujii S, Aoyama J, Hirai S, Yoshimura M, Yoshino Y, Kawano Y, Shigeta K, Taira N, Karakama J, Ishiwada T, Yamashina M, Hirakawa A, Sumita K. Impact of cancer history on long-term outcome after elective neuro-endovascular treatment in patients aged 80 years or older: A retrospective multicenter observational study. Geriatrics & gerontology international. 2024.02; 24 (2): 211-217. ( PubMed, DOI )

  2. Shuheng Wen, Kana Unuma, Ryoichi Hanazawa, Shutaro Nagano, Ryo Watanabe, Akihiro Hirakawa, Koichi Uemura. Alcohol and toxicological factors influencing fatal falls from height in the Greater Tokyo Area: a retrospective study. Int J Legal Med. 2023.11; ( PubMed, DOI )

  3. Yamada T, Minami T, Yoshino S, Emoto K, Mabuchi S, Hanazawa R, Hirakawa A, Hashimoto M. Diaphragm Ultrasonography: Reference Values and Influencing Factors for Thickness, Thickening Fraction, and Excursion in the Seated Position. Lung. 2023.11; ( PubMed, DOI )

  4. Komatsuzaki K, Kageshima H, Sekino Y, Suzuki Y, Ugajin T, Tamaoka M, Hanazawa R, Hirakawa A, Miyazaki Y. Local nasal immunotherapy with birch pollen-galactomannan conjugate-containing ointment in mice and humans. Allergology international : official journal of the Japanese Society of Allergology. 2023.11; ( PubMed, DOI )

  5. Hattori T, Ohara M, Yuasa T, Azuma R, Chen Q, Hanazawa R, Hirakawa A, Orimo S, Yokota T. Correlation of callosal angle at the splenium with gait and cognition in normal pressure hydrocephalus. Journal of neurosurgery. 2023.01; 139 (8): 1-11. ( PubMed, DOI )

  6. Hanazawa R, Sato H, Sasaki M, Suzuki K, Hirakawa A. Study designs and statistical analyses in randomized controlled trials of non-pharmacological preventive and therapeutic interventions for dementia continuum : A statistical review Dementia Japan. 2023.01; 37 (1): 96-132.

  7. Kawahara T, Iwamoto T, Takashima I, Hanazawa R, Uemura K, Uemura Y, Mukai H, Kikawa Y, Taira N. Association of change in health-related quality of life and treatment discontinuation in metastatic breast cancer: a post hoc, exploratory analysis of two randomized clinical trials Support Care Cancer. 2022.10; 30 (10): 8367-8375. ( PubMed, DOI )

  8. Oda G, Nakagawa T, Mori H, Onishi I, Fujioka T, Mori M, Kubota K, Hanazawa R, Hirakawa A, Ishikawa T, Okamoto K, Uetake H. Factors predicting upstaging from clinical N0 to pN2a/N3a in breast cancer patients. World Journal of Clinical Oncology. 2022.09; 13 (9): 748-757.

  9. Murata K, Takahashi Y, Inaba O, Nitta J, Kobori A, Sakamoto Y, Nagata Y, Tanimoto K, Matsuo S, Yamane T, Morita N, Satomi K, Sato H, Hanazawa R, Hirakawa A, Goya M, Sasano T. Efficacy of left atrial posterior wall isolation guided by lesion size prediction module for non-paroxysmal atrial fibrillation. EP Europace. 2022.07; ( PubMed )

  10. Hirakawa A, Sato H, Hanazawa R, Suzuki K, Japanese Alzheimer's Disease Neuroimaging Initiative.. Estimating the longitudinal trajectory of cognitive function measurement using short-term data with different disease stages: Application in Alzheimer's disease. Statistics in medicine. 2022.06; 41 (21): 4200-4214.

  11. Takenaka K, Fujii T, Kawamoto A, Suzuki K, Shimizu H, Maeyashiki C, Yamaji O, Motobayashi M, Igarashi A, Hanazawa R, Hibiya S, Nagahori M, Saito E, Okamoto R, Ohtsuka K, Watanabe M. Deep neural network for video colonoscopy of ulcerative colitis: a cross-sectional study Lancet Gastroenterology & Hepatology. 2021.11; 7 (3): 230-237. ( PubMed, DOI )

  12. Takahashi Y, Nitta J, Kobori A, Sakamoto Y, Nagata Y, Tanimoto K, Matsuo S, Yamane T, Morita N, Satomi K, Inaba O, Murata K, Sasaki Y, Yoshimoto D, Kaneko M, Tanimoto Y, Isogai R, Yamashita S, Sato H, Hanazawa R, Hirakawa A, Goya M, Sasano T.. Alcohol Consumption Reduction and Clinical Outcomes of Catheter Ablation for Atrial Fibrillation Circulation:Arrhythmia and electrophysiology. 2021.06; 14 (6):

  13. Kato M, Hirakawa A, Sato H, Hanazawa R, Naito Y, Tochigi K, Sano T, Ishida S, Funahashi Y, Fujita T, Matsukawa Y, Hattori R, Tsuzuki T. Grade group 2 (10% >= GP4) patients have very similar malignant potential with grade group 1 patients, given the risk of intraductal carcinoma of the prostate Int J Clin Oncol. 2021.04; 26 (4): 764-769. ( PubMed, DOI )

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Conference Activities & Talks 【 display / non-display 】

  1. Tsuchiya K, Nagahori M, Hanazawa R, Sasaki S, Sato H, Hirakawa A, Anzai T, Takahashi K, Kobayashi Y, Hibiya S, Takenaka K, Watanabe M.. Serial daily recording of patient-reported outcomes (PRO2) might predict treatment change in the patients with ulcerative colitis. ECCO 2023 2023.03.01

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