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M. Koizumi · SciRah

Researcher profile · Semantic Scholar

M. Koizumi

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M. Koizumi — researcher profile on SciRah

h-index: 29
Works: 236
Citations: 3,321

Most-cited papers

HyperArc VMAT planning for single and multiple brain metastases stereotactic radiosurgery: a new treatment planning approach
S. Ohira, Y. Ueda, Y. Akino, Misaki Hashimoto +5 more
2018Radiation Oncology162 citations Open access
Semantic Scholar
Limited Impact of Setup and Range Uncertainties, Breathing Motion, and Interplay Effects in Robustly Optimized Intensity Modulated Proton Therapy for Stage III Non-small Cell Lung Cancer.
Tatsuya Inoue, J. Widder, L. V. van Dijk, H. Takegawa +10 more
2016International Journal of Radiation Oncology, Biology, Physics82 citations Open access
Semantic Scholar
Carbon ion irradiation enhances the antitumor efficacy of dual immune checkpoint blockade therapy both for local and distant sites in murine osteosarcoma
Yutaka Takahashi, Tomohiro Yasui, Kazumasa Minami, K. Tamari +6 more
2019OncoTarget68 citations Open access
Semantic Scholar
Dosimetric effect of rotational setup errors in stereotactic radiosurgery with HyperArc for single and multiple brain metastases
Tomohiro Sagawa, S. Ohira, Y. Ueda, Y. Akino +5 more
2019Journal of Applied Clinical Medical Physics53 citations Open access
Semantic Scholar
Inhibitory Effects of Dopamine Receptor D1 Agonist on Mammary Tumor and Bone Metastasis
Kazumasa Minami, Shengzhi Liu, Yang Liu, Andy B. Chen +11 more
2017Scientific Reports51 citations Open access
Semantic Scholar
Radiation enhanced the local and distant anti-tumor efficacy in dual immune checkpoint blockade therapy in osteosarcoma
Yutaka Takahashi, Tomohiro Yasui, K. Tamari, Kazumasa Minami +6 more
2017PLoS ONE49 citations Open access
Semantic Scholar
Radiotherapy treatment planning with contrast-enhanced computed tomography: feasibility of dual-energy virtual unenhanced imaging for improved dose calculations
Sachiko Yamada, T. Ueguchi, Toshiyuki Ogata, H. Mizuno +5 more
2014Radiation Oncology47 citations Open access
Semantic Scholar
Attenuation of malignant phenotypes of breast cancer cells through eIF2α-mediated downregulation of Rac1 signaling.
K. Hamamura, Kazumasa Minami, Nancy Tanjung, Qiaoqiao Wan +4 more
2014International Journal of Oncology42 citations Open access
Semantic Scholar
The CD44 standard isoform contributes to radioresistance of pancreatic cancer cells
Kento Tsubouchi, Kazumasa Minami, N. Hayashi, Yuhki Yokoyama +3 more
2017Journal of Radiation Research35 citations Open access
Semantic Scholar
Effect of collimator angle on HyperArc stereotactic radiosurgery planning for single and multiple brain metastases.
S. Ohira, Tomohiro Sagawa, Y. Ueda, S. Inui +6 more
2020Medical Dosimetry30 citations
Semantic Scholar
Estimation of electron density, effective atomic number and stopping power ratio using dual-layer computed tomography for radiotherapy treatment planning.
S. Ohira, H. Washio, M. Yagi, T. Karino +5 more
2018Physica medica (Testo stampato)28 citations
Semantic Scholar
Radiobiological effects of flattening filter–free photon beams on A549 non-small-cell lung cancer cells
Hisashi Nakano, Kazumasa Minami, M. Yagi, Hiromasa Imaizumi +8 more
2018Journal of Radiation Research25 citations Open access
Semantic Scholar
How Well Does Dual-energy CT with Fast Kilovoltage Switching Quantify CT Number and Iodine and Calcium Concentrations?
S. Ohira, T. Karino, Y. Ueda, Yuya Nitta +4 more
2017Academic Radiology23 citations
Semantic Scholar
Monte Carlo Modeling of the Agility MLC for IMRT and VMAT Calculations
S. Ohira, H. Takegawa, M. Miyazaki, M. Koizumi +1 more
2020In Vivo20 citations Open access
Semantic Scholar
X‐ray‐enhanced cancer cell migration requires the linker of nucleoskeleton and cytoskeleton complex
Hiromasa Imaizumi, Katsutoshi Sato, Asuka Nishihara, Kazumasa Minami +3 more
2018Cancer Science20 citations Open access
Semantic Scholar
Intra‐fractional motion error during HyperArc stereotactic radiosurgery on patients with brain metastases: Comparison of open and full‐face clamshell‐style immobilization devices
S. Ohira, Riho Komiyama, Naoyuki Kanayama, Y. Ueda +4 more
2022Journal of Applied Clinical Medical Physics19 citations Open access
Semantic Scholar
Clinical implementation of contrast-enhanced four-dimensional dual-energy computed tomography for target delineation of pancreatic cancer.
S. Ohira, K. Wada, Takero Hirata, Naoyuki Kanayama +8 more
2018Radiotherapy and Oncology18 citations
Semantic Scholar
Clinical target volume segmentation based on gross tumor volume using deep learning for head and neck cancer treatment.
Sayaka Kihara, Yuhei Koike, H. Takegawa, Yusuke Anetai +3 more
2022Medical Dosimetry17 citations
Semantic Scholar
Radiation Dose Escalation Is Crucial in Anti-CTLA-4 Antibody Therapy to Enhance Local and Distant Antitumor Effect in Murine Osteosarcoma
Wataru Takenaka, Yutaka Takahashi, K. Tamari, Kazumasa Minami +5 more
2020Cancers17 citations Open access
Semantic Scholar
Ultra-high Dose-rate Carbon-ion Scanning Beam With a Compact Medical Synchrotron Contributing to Further Development of FLASH Irradiation
M. Yagi, S. Shimizu, Kazumasa Minami, N. Hamatani +9 more
2023Anticancer Research16 citations Open access
Semantic Scholar
Long-term results of intraoperative extracorporeal irradiation of autogenous bone grafts on primary bone and soft tissue malignancies
K. Hayashi, N. Araki, M. Koizumi, O. Suzuki +9 more
2015Acta oncologica16 citations Open access
Semantic Scholar
Monotherapeutic high-dose-rate brachytherapy for prostate cancer: a dose reduction trial.
Y. Yoshioka, K. Konishi, O. Suzuki, Y. Nakai +8 more
2014Radiotherapy and Oncology16 citations
Semantic Scholar
Dosimetric impact of rotational setup errors in volumetric modulated arc therapy for postoperative cervical cancer
K. Tsujii, Y. Ueda, M. Isono, M. Miyazaki +2 more
2021Journal of Radiation Research15 citations Open access
Semantic Scholar
Treatment planning based on water density image generated using dual‐energy computed tomography for pancreatic cancer with contrast‐enhancing agent: Phantom and clinical study
S. Ohira, M. Yagi, H. Iramina, T. Karino +5 more
2018Medical Physics (Lancaster)15 citations
Semantic Scholar
Salvage high-dose-rate interstitial brachytherapy for locally recurrent rectal cancer: long-term follow-up results
M. Morimoto, Fumiaki Isohashi, Y. Yoshioka, O. Suzuki +5 more
2014International Journal of Clinical Oncology15 citations
Semantic Scholar
Radiation therapy enhances systemic antitumor efficacy in PD-L1 therapy regardless of sequence of radiation in murine osteosarcoma
S. Katsuki, Yutaka Takahashi, K. Tamari, Kazumasa Minami +9 more
2022PLoS ONE14 citations Open access
Semantic Scholar
Impact of Multileaf Collimator Width on Dose Distribution in HyperArc Fractionated Stereotactic Irradiation for Multiple (5-10) Brain Metastases
S. Ohira, Y. Ueda, Naoyuki Kanayama, M. Isono +7 more
2021Anticancer Research14 citations Open access
Semantic Scholar
Can clinically relevant dose errors in patient anatomy be detected by gamma passing rate or modulation complexity score in volumetric-modulated arc therapy for intracranial tumors?
S. Ohira, Y. Ueda, M. Isono, A. Masaoka +5 more
2017Journal of Radiation Research14 citations Open access
Semantic Scholar
Local hyperthermia combined with CTLA-4 blockade induces both local and abscopal effects in a murine breast cancer model
Y. Ibuki, Yutaka Takahashi, K. Tamari, Kazumasa Minami +4 more
2021International Journal of Hyperthermia13 citations Open access
Semantic Scholar
Stereotactic body radiation therapy planning for liver tumors using functional images from dual-energy computed tomography.
S. Ohira, Naoyuki Kanayama, Masayasu Toratani, Y. Ueda +6 more
2020Radiotherapy and Oncology13 citations
Semantic Scholar
Volumetric modulated arc therapy planning based on virtual monochromatic images: Effect of inaccurate CT numbers on dose distributions.
S. Ohira, Riho Komiyama, T. Karino, H. Washio +4 more
2019Physica medica (Testo stampato)13 citations
Semantic Scholar
Inhibiting checkpoint kinase 1 protects bone from bone resorption by mammary tumor in a mouse model
Shengzhi Liu, Yang Liu, Kazumasa Minami, Andy B. Chen +12 more
2018OncoTarget13 citations Open access
Semantic Scholar
Comparison of Absorbed Dose to Medium and Absorbed Dose to Water for Spine IMRT Plans Using a Commercial Monte Carlo Treatment Planning System
M. N. Usmani, N. Masai, R. Oh, H. Shiomi +4 more
201413 citations Open access
Semantic Scholar
Improvement in bladder volume reproducibility using A‐mode portable ultrasound bladder scanner in moderate‐hypofractionated volumetric modulated arc therapy for prostate cancer patients
S. Ohira, Riho Komiyama, Naoyuki Kanayama, Kayo Sakai +7 more
2022Journal of Applied Clinical Medical Physics12 citations Open access
Semantic Scholar
High Dose Local Photon Irradiation Is Crucial in Anti-CTLA-4 Antibody Therapy to Enhance the Abscopal Response in a Murine Pancreatic Carcinoma Model
Junya Yamamoto, Yutaka Takahashi, Kazumasa Minami, K. Tamari +8 more
2022Cancers12 citations Open access
Semantic Scholar
Irradiation strongly reduces tumorigenesis of human induced pluripotent stem cells
S. Inui, Kazumasa Minami, Emiko Ito, Hiromasa Imaizumi +6 more
2017Journal of Radiation Research12 citations Open access
Semantic Scholar
Physics of epi-thermal boron neutron capture therapy (epi-thermal BNCT)
R. Seki, Yushi Wakisaka, N. Morimoto, M. Takashina +3 more
2017Radiological Physics and Technology12 citations
Semantic Scholar
Hypofractionated Radiotherapy for Localized Prostate Cancer: A Challenging Accelerated Hypofractionated Radiotherapy.
H. Yamazaki, S. Nakamura, G. Suzuki, Ken Yoshida +3 more
2015Anticancer Research12 citations
Semantic Scholar
Validation of robust radiobiological optimization algorithms based on the mixed beam model for intensity-modulated carbon-ion therapy
M. Yagi, T. Tsubouchi, N. Hamatani, M. Takashina +11 more
2023PLoS ONE11 citations Open access
Semantic Scholar
Novel strategy with the automatic non-coplanar volumetric-modulated arc therapy for angiosarcoma of the scalp
S. Inui, Y. Ueda, S. Ohira, Haruhi Tsuru +4 more
2020Radiation Oncology11 citations Open access
Semantic Scholar
Comparison of Acute and Subacute Genitourinary and Gastrointestinal Adverse Events of Radiotherapy for Prostate Cancer Using Intensity-modulated Radiation Therapy, Three-dimensional Conformal Radiation Therapy, Permanent Implant Brachytherapy and High-dose-rate Brachytherapy
M. Morimoto, Y. Yoshioka, K. Konishi, Fumiaki Isohashi +8 more
2014Tumori11 citations
Semantic Scholar
Automated Non-coplanar Volumetric Modulated Arc Therapy Planning for Maxillary Sinus Carcinoma
S. Ohira, S. Inui, Naoyuki Kanayama, Y. Ueda +3 more
2023In Vivo10 citations Open access
Semantic Scholar
Clinical Assessment of Micro-residual Tumors during Stereotactic Body Radiation Therapy for Hepatocellular Carcinoma.
Kenji Uemoto, H. Doi, H. Shiomi, K. Yamada +5 more
2018Anticancer Research10 citations Open access
Semantic Scholar
KRT13 is upregulated in pancreatic cancer stem-like cells and associated with radioresistance
Wataru Takenaka, Yuhki Yokoyama, Katsuya Ikehata, Shihori Kouda +6 more
2023Journal of Radiation Research9 citations Open access
Semantic Scholar
Circulating Plasma Exosomal PD-L1 Predicts Prognosis of Head and Neck Squamous Cell Carcinoma After Radiation Therapy
K. Tamari, Kazumasa Minami, S. Tatekawa, Yuji Seo +12 more
2023Advances in Radiation Oncology9 citations Open access
Semantic Scholar
Intra-fractional patient setup error during fractionated intracranial stereotactic irradiation treatment of patients wearing medical masks: comparison with and without bite block during COVID-19 pandemic
S. Ohira, Naoyuki Kanayama, Riho Komiyama, Toshiki Ikawa +6 more
2020Journal of Radiation Research9 citations Open access
Semantic Scholar
Japanese structure survey of radiation oncology in 2010
H. Numasaki, T. Teshima, T. Nishimura, K. Akuta +13 more
2018Journal of Radiation Research9 citations Open access
Semantic Scholar
Couch height-based patient setup for abdominal radiation therapy.
S. Ohira, Y. Ueda, K. Nishiyama, M. Miyazaki +6 more
2016Medical Dosimetry9 citations
Semantic Scholar
Transient modulation of calcium and parathyroid hormone stimulates bone formation
Andy B. Chen, Kazumasa Minami, J. Raposo, N. Matsuura +3 more
2016Endocrine9 citations
Semantic Scholar
Measurement of exhaled nitric oxide and serum surfactant protein D levels for monitoring radiation pneumonitis following thoracic radiotherapy
H. Yamazaki, N. Aibe, S. Nakamura, Naomi Sasaki +8 more
2017Oncology Letters8 citations Open access
Semantic Scholar

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T. Teshima×19
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S. Ohira×18
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Kazumasa Minami

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Fumiaki Isohashi×11

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