Publications by authors named "Toshiyuki Ogata"

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Dosimetric study of synchrotron rapid beam off control and skip spot function for high beam intensity proton therapy.
Masashi Yagi, Keith M Furutani, Toshiyuki Ogata, Takuya Nomura, Masumi Umezawa

Med Phys· March 2025

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Clinical workload profile of medical physics professionals at particle therapy Centers: a National Survey in Japan.
Seiichi Ota, Keisuke Yasui, Toshiyuki Ogata, Yutaro Mori, Teiji Nishio

J Radiat Res· January 2025

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Comparative dosimetric study of spot-scanning proton therapy versus volumetric-modulated radiation therapy for extrahepatic bile duct cancer.
Toshiyuki Ogata, Norihiro Aibe, Takuya Kimoto, Tadashi Takenaka, Gen Suzuki

Med Dosim· February 2024

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Effective heart-sparing whole lung irradiation using volumetric modulated arc therapy: a case report.
Gen Suzuki, Toshiyuki Ogata, Norihiro Aibe, Hideya Yamazaki, Shigeki Yagyu

J Med Case Rep· September 2019

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Correlation Between Dosimetric Parameters and Acute Dermatitis of Post-operative Radiotherapy in Breast Cancer Patients.
Tadashi Takenaka, Hideya Yamazaki, Gen Suzuki, Norihiro Aibe, Koji Masui, Toshiyuki Ogata

In Vivo· January 2019

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Identification of the suitable leaf margin for liver stereotactic body radiotherapy with flattening filter-free beams.
Toshiyuki Ogata, Hideki Nishimura, Hiroshi Mayahara, Kazuyuki Uehara, Takanobu Okayama

Med Dosim· August 2018

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Polarity correction factor for flattening filter free photon beams in several cylindrical ionization chambers.
Toshiyuki Ogata, Kazuyuki Uehara, Masao Nakayama, Shinji Tsudou, Takashi Masutani

Radiol Phys Technol· July 2016

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[Perceptual image dissimilarity--a novel metric for objective assessment of image quality in computed tomography with iterative reconstruction].
Sachiko Yamada, Takashi Ueguchi, Toshiyuki Ogata, Ryota Ogihara, Kenya Murase

Igaku Butsuri· March 2015

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Dosimetry analyses comparing high-dose-rate brachytherapy, administered as monotherapy for localized prostate cancer, with stereotactic body radiation therapy simulated using CyberKnife.
Shoichi Fukuda, Yuji Seo, Hiroya Shiomi, Yuji Yamada, Toshiyuki Ogata

J Radiat Res· November 2014

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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.
Masahiro Morimoto, Yasuo Yoshioka, Koji Konishi, Fumiaki Isohashi, Yutaka Takahashi, Toshiyuki Ogata

Tumori· November 2014

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Radiotherapy treatment planning with contrast-enhanced computed tomography: feasibility of dual-energy virtual unenhanced imaging for improved dose calculations.
Sachiko Yamada, Takashi Ueguchi, Toshiyuki Ogata, Hirokazu Mizuno, Ryota Ogihara

Radiat Oncol· July 2014

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Salvage high-dose-rate interstitial brachytherapy for locally recurrent rectal cancer: long-term follow-up results.
Masahiro Morimoto, Fumiaki Isohashi, Yasuo Yoshioka, Osamu Suzuki, Yuji Seo, Toshiyuki Ogata

Int J Clin Oncol· April 2014

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A phase I study of concurrent weekly carboplatin and paclitaxel combined with intensity-modulated pelvic radiotherapy as an adjuvant treatment for early-stage cervical cancer patients with positive pelvic lymph nodes.
Seiji Mabuchi, Ryoko Takahashi, Fumiaki Isohashi, Takeshi Yokoi, Kimihiko Ito, Toshiyuki Ogata

Int J Gynecol Cancer· September 2013

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Gemstone spectral imaging: determination of CT to ED conversion curves for radiotherapy treatment planning.
Masashi Yagi, Takashi Ueguchi, Masahiko Koizumi, Toshiyuki Ogata, Sachiko Yamada

J Appl Clin Med Phys· September 2013

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Feasibility and accuracy of relative electron density determined by virtual monochromatic CT value subtraction at two different energies using the gemstone spectral imaging.
Toshiyuki Ogata, Takashi Ueguchi, Masashi Yagi, Sachiko Yamada, Chikako Tanaka

Radiat Oncol· April 2013

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Dose-volume histogram predictors of chronic gastrointestinal complications after radical hysterectomy and postoperative concurrent nedaplatin-based chemoradiation therapy for early-stage cervical cancer.
Fumiaki Isohashi, Yasuo Yoshioka, Seiji Mabuchi, Koji Konishi, Masahiko Koizumi, Toshiyuki Ogata

Int J Radiat Oncol Biol Phys· March 2013

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The usefulness of an independent patient-specific treatment planning verification method using a benchmark plan in high-dose-rate intracavitary brachytherapy for carcinoma of the uterine cervix.
Yutaka Takahashi, Masahiko Koizumi, Iori Sumida, Fumiaki Isohashi, Toshiyuki Ogata

J Radiat Res· November 2012

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Quality assurance of MLC leaf position accuracy and relative dose effect at the MLC abutment region using an electronic portal imaging device.
Iori Sumida, Hajime Yamaguchi, Hisao Kizaki, Masahiko Koizumi, Toshiyuki Ogata

J Radiat Res· September 2012

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Anti-IL-6 receptor antibody does not ameliorate radiation pneumonia in mice.
Toshiyuki Ogata, Hideya Yamazaki, Teruki Teshima, Takahiro Tsuchiya, Norihiro Nishimoto

Exp Ther Med· August 2012

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Megavoltage cone beam computed tomography dose and the necessity of reoptimization for imaging dose-integrated intensity-modulated radiotherapy for prostate cancer.
Yuichi Akino, Masahiko Koizumi, Iori Sumida, Yutaka Takahashi, Toshiyuki Ogata

Int J Radiat Oncol Biol Phys· April 2012

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Weekly verification of dosimetric data for virtual wedge using a 2D diode detector array.
Toshiyuki Ogata, Masahiko Koizumi, Iori Sumida, Yutaka Takahashi, Yuichi Akino

Med Dosim· November 2011

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Carbon ion irradiation suppresses metastatic potential of human non-small cell lung cancer A549 cells through the phosphatidylinositol-3-kinase/Akt signaling pathway.
Toshiyuki Ogata, Teruki Teshima, Miho Inaoka, Kazumasa Minami, Takahiro Tsuchiya

J Radiat Res· November 2011

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Monotherapeutic high-dose-rate brachytherapy for prostate cancer: five-year results of an extreme hypofractionation regimen with 54 Gy in nine fractions.
Yasuo Yoshioka, Koji Konishi, Iori Sumida, Yutaka Takahashi, Fumiaki Isohashi, Toshiyuki Ogata

Int J Radiat Oncol Biol Phys· June 2011

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What is the optimum minimum segment size used in step and shoot IMRT for prostate cancer?
Yutaka Takahashi, Masahiko Koizumi, Iori Sumida, Toshiyuki Ogata, Yuichi Akino

J Radiat Res· March 2011

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Recent advances in the biology of heavy-ion cancer therapy.
Nobuyuki Hamada, Tatsuhiko Imaoka, Shin-ichiro Masunaga, Toshiyuki Ogata, Ryuichi Okayasu

J Radiat Res· December 2010

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