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Author

Keiichiro Koiwai

Observed names: K Koiwai, K. Koiwai, KOIWAI, Keiichiro, Koiwai, Keiichiro
Institution: Shinshu University
ORCID: 0000-0002-3582-7572
Observed ORCID: 0000-0002-3582-7572
OpenAlex ID: A5081499697
Clinicopathologic features and histochemical analyses of proliferative activity and angiogenesis in small cell carcinoma of the esophagus
2007 · Naohiko Koide, Hiroyasu Saito, et al. · Journal of Gastroenterology · 42
Successful Treatment of Primary Cardiac Angiosarcoma With Docetaxel and Radiotherapy
2008 · Miki Nakamura-Horigome, Jun Koyama, et al. · Angiology · 39
Dummy run for a phase II multi-institute trial of chemoradiotherapy for unresectable pancreatic cancer: inter-observer variance in contour delineation.
2007 · Hideya Yamazaki, Kinji Nishiyama, et al. · PubMed · 35
Risk Factors for Severe Dysphagia after Concurrent Chemoradiotherapy for Head and Neck Cancers
2009 · K. Koiwai, N. Shikama, et al. · Japanese Journal of Clinical Oncology · 26
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Validation of the Total Dysphagia Risk Score (TDRS) as a predictive measure for acute swallowing dysfunction induced by chemoradiotherapy for head and neck cancers
2010 · Keiichiro Koiwai, Naoto Shikama, et al. · Radiotherapy and Oncology · 20
Impact of low‐dose tadalafil on adverse events after low‐dose‐rate brachytherapy for prostate cancer: A bi‐center randomized open‐label trial
2021 · Tomonori Minagawa, Tomohiko Oguchi, et al. · International Journal of Urology · 7
Outcomes of uterine cervical cancer patients with pelvic lymph node metastases after radiotherapy without boost irradiation of metastases
2017 · Eriko Yoshizawa, Keiichiro Koiwai, et al. · Journal of obstetrics and gynaecology research · 7
Impact of upgraded radiotherapy system on outcomes in postoperative head and neck squamous cell carcinoma patients
2022 · Keiichiro Koiwai, Dai Hirasawa, et al. · Reports of Practical Oncology & Radiotherapy · 6
Relationship Between the Response to Treatment and the Prognosis of Patients with Aggressive Lymphomas Treated with Chemotherapy Followed by Involved-field Radiotherapy: Radiographic Assessment
2008 · S. Sasaki, N. Shikama, et al. · Japanese Journal of Clinical Oncology · 5
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Evaluation of central nervous system involvement in nasal lymphomas.
2001 · N Shikama, M Oguchi, et al. · PubMed · 3
Dosimetric Comparisons of Volumetric Modulated Arc Therapy with Three-Dimensional Conformal Radiation Therapy for Locally Advanced Non-Small Cell Lung Cancer
2016 · Takesumi Ozawa, Keiichiro Koiwai, et al. · Institutional Repositories DataBase (IRDB) · 2
Palliative radiotherapy for Japanese patients with malignant melanoma: a single-institution experience
2015 · Keiichiro Koiwai, Shigeru Sasaki, et al. · Japanese Journal of Radiology · 2
Radiotherapy for Intracranial Germinoma
2003 · Naoto Shikama, Shigeru Sasaki, et al. · The Journal of JASTRO · 2
Nasal cavity tumor successfully treated with urgent combined proton and photon therapy to preserve visual function: A case study
2023 · Yu Furui, Masayuki Araya, et al. · Pediatric Blood & Cancer · 1
Ten-Year Experience of Stereotactic Body Radiotherapy at a Single Institution: Impact of Technological Development on the Outcome of Patients With Early Lung Cancer
2020 · Keiichiro Koiwai, Yuuki Endo, et al. · Technology in Cancer Research & Treatment · 1
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Proton Beam Therapy for Adolescent Primary Central Nervous System Lymphoma With Residual Tumor After Intensive Chemotherapy: A Case Report
2019 · Kazutoshi Komori, Shoji Saito, et al. · Practical Radiation Oncology · 1
Bronchial Mucoepidermoid Carcinoma Successfully Treated with Radiation Therapy: A Case Report
2017 · Kenichi Nishie, Masanori Yasuo, et al. · Oncology & Cancer Case Reports · 1
Validity of reduced radiation dose for localized diffuse large B-cell lymphoma showing a good response to chemotherapy
2013 · K. Koiwai, S. Sasaki, et al. · Journal of Radiation Research · 1
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[Imaging of gastrointestinal stromal tumor (GIST): relation between CT findings and grade of malignancy].
2003 · Kentaro Mochizuki, Mizuho Ueda, et al. · PubMed · 1
Beyond Reirradiation: Third-Course Radiation Therapy in Recurrent Diffuse Intrinsic Pontine Glioma—Case Series and Literature Review
2026 · Haruna Sakagami, Koichi Morokawa, et al. · Journal of Pediatric Hematology/Oncology
Five Cases of Palliative Whole-liver Irradiation in a Single Fraction for Multiple Liver Metastases
2026 · 杉村, 美優, 小岩井, 慶一郎, et al. · Institutional Repositories DataBase (IRDB)
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Evaluating the Feasibility and Safety of Daily Inter-facility Travel for Proton Beam Therapy During Chemotherapy-Induced Myelosuppression in Children With Cancer
2026 · Yu Furui, Masayuki Araya, et al. · Cureus
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Clinical considerations for non-operative treatment of spinal metastases with intermediate instability
2025 · Atsushi Tanaka, Masanori Okamoto, et al. · European Spine Journal
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Impact of low dose tadalafil, phosphodiesterase-5 inhibitor, on adverse events after low dose rate brachytherapy for prostate cancer- a multi center randomized open label trial-
2019 · Tomohiko Oguchi, Tomonori Minagawa, et al. · ics.org
Mp72-20 Impact of Tadalafil on Adverse Events After Low Dose Rate Brachytherapy for Prostate Cancer- a Multi Center Randomized Open Label Trial
2019 · Tomohiko Oguchi*, Tomonori Minagawa, et al. · The Journal of Urology
Works count: 30
Citation count: 202
H-index: 7
I10-index: 5
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