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  1. No Access

    Article

    Knowledge-based model building for treatment planning for prostate cancer using commercial treatment planning quality assurance software tools

    This study devised a method to efficiently launch the RapidPlan model for volumetric-modulated arc therapy for prostate cancer in small- and medium-sized facilities using high-quality treatment plans with the ...

    Nagi Masumoto, Motoharu Sasaki, Yuji Nakaguchi… in Radiological Physics and Technology (2024)

  2. No Access

    Article

    Feasibility of using tungsten functional paper as a thin bolus for electron beam radiotherapy

    Containing 80% tungsten by weight, tungsten functional paper (TFP) is a radiation-shielding material that is lightweight, flexible, disposable, and easy to cut. Through experimental measurements and Monte Carl...

    Yoshiki Takei, Takeshi Kamomae… in Physical and Engineering Sciences in Medic… (2020)

  3. Article

    Open Access

    Whole abdominopelvic intensity-modulated radiation therapy for peritoneal disseminated rhabdomyosarcoma with three-year follow-up: a case report

    The role of local radiotherapy in the treatment of metastatic rhabdomyosarcoma is important. However, with peritoneal dissemination, the application of local therapy is challenging. Although there are few repo...

    Mariko Kawamura, Kuniyasu Okudaira, Yoshiyuki Itoh, Takeshi Kamomae… in Radiation Oncology (2019)

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  4. No Access

    Article

    Influence of multi-leaf collimator leaf transmission on head and neck intensity-modulated radiation therapy and volumetric-modulated arc therapy planning

    The aim of this study was to quantify the effect of multi-leaf collimators (MLCs) with different leaf widths on the planning of intensity-modulated radiation therapy (IMRT) and volumetric-modulated arc therapy...

    Motoharu Sasaki, Masahide Tominaga, Takeshi Kamomae… in Japanese Journal of Radiology (2017)

  5. No Access

    Article

    Dose impact of rectal gas on prostatic IMRT and VMAT

    In this study, we compared the dose impact of the heterogeneity caused by rectal gas using two methods of treatment planning for intensity-modulated radiotherapy (IMRT) and volumetric-modulated arc therapy (VM...

    Motoharu Sasaki, Hitoshi Ikushima, Masahide Tominaga… in Japanese Journal of Radiology (2015)

  6. Article

    Open Access

    A phase I/II trial of intraoperative breast radiotherapy in an Asian population: 5-year results of local control and cosmetic outcome

    To date, there are no reports of intraoperative radiotherapy (IORT) use with long-term follow up as a method of accelerated partial breast irradiation (APBI) in Asian countries. We initiated a prospective phas...

    Mariko Kawamura, Yoshiyuki Itoh, Masataka Sawaki, Toyone Kikumori… in Radiation Oncology (2015)

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  7. No Access

    Article

    Comparison of dose accuracy between film and two-dimensional detectors in intensity-modulated radiation therapy

    We constructed seven intensity-modulated radiation therapy (IMRT) treatment plans for prostate cancer (49 irradiation fields which contained seven randomly-sampled patients and seven fields) and evaluated the ...

    Yuichi Onishi, Shinichi Nakayama… in Journal of the Korean Physical Society (2015)

  8. No Access

    Article

    Simulation for improvement of system sensitivity of radiochromic film dosimetry with different band-pass filters and scanner light intensities

    The delivered dose of high-energy photon beams is measured with radiochromic film. Previous studies sought to improve the system sensitivity of radiochromic film dosimetry by use of band-pass filters. However,...

    Takeshi Kamomae, Yuki Miyabe, Akira Sawada… in Radiological Physics and Technology (2011)