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  1. Article

    Open Access

    Organs-at-risk dose constraints in head and neck intensity-modulated radiation therapy using a dataset from a multi-institutional clinical trial (JCOG1015A1)

    JCOG1015A1 is an ancillary research study to determine the organ-specific dose constraints in head and neck carcinoma treated with intensity-modulated radiation therapy (IMRT) using data from JCOG1015.

    Masahiro Inada, Yasumasa Nishimura, Satoshi Ishikura, Kazuki Ishikawa in Radiation Oncology (2022)

  2. Article

    Open Access

    Feasibility study of volumetric modulated arc therapy with Halcyon™ linac for total body irradiation

    The use of total body irradiation (TBI) with linac-based volumetric modulated arc therapy (VMAT) has been steadily increasing. Helical tomotherapy has been applied in TBI and total marrow irradiation to reduce...

    Takuya Uehara, Hajime Monzen, Mikoto Tamura, Masahiro Inada in Radiation Oncology (2021)

  3. Article

    Open Access

    Dummy-run for standardizing plan quality of intensity-modulated radiotherapy for postoperative uterine cervical cancer: Japan Clinical Oncology Group study (JCOG1402)

    The purpose of this study was to assess compliance with treatment planning in a dummy-run for a multicenter clinical trial involving patients with high-risk postoperative uterine cervical cancer using intensit...

    Hiroyuki Okamoto, Naoya Murakami, Fumiaki Isohashi in Radiation Oncology (2019)

  4. Article

    Open Access

    Mechanical performance of a commercial knowledge-based VMAT planning for prostate cancer

    This study clarified the mechanical performance of volumetric modulated arc therapy (VMAT) plans for prostate cancer generated with a commercial knowledge-based treatment planning (KBP) and whether KBP system ...

    Mikoto Tamura, Hajime Monzen, Kenji Matsumoto, Kazuki Kubo in Radiation Oncology (2018)

  5. No Access

    Article

    Comparison of lesion enhancement between BB Cube and 3D-SPGR images for brain tumors with 1.5-T magnetic resonance imaging

    This study aimed to compare the detectability of neoplastic lesion enhancement after gadolinium-based contrast media injection in three-dimensional T1-weighted black blood Cube (3D-T1W BB Cube) and three-dimen...

    Hirokazu Hasegawa, Ryuichiro Ashikaga, Kaoru Okajima in Japanese Journal of Radiology (2017)

  6. Article

    Open Access

    Patterns of radiotherapy practice for biliary tract cancer in Japan: results of the Japanese radiation oncology study group (JROSG) survey

    The patterns of radiotherapy (RT) practice for biliary tract cancer (BTC) in Japan are not clearly established.

    Fumiaki Isohashi, Kazuhiko Ogawa, Hirobumi Oikawa, Hiroshi Onishi in Radiation Oncology (2013)

  7. No Access

    Article

    Dosimetric properties and clinical application of an a-Si EPID for dynamic IMRT quality assurance

    Dosimetric properties of an amorphous silicon electronic portal imaging device (EPID) for verification of intensity-modulated radiation therapy (IMRT) were investigated as a replacement for conventional verifi...

    Kenji Matsumoto, Masahiko Okumura, Yoshiyuki Asai in Radiological Physics and Technology (2013)