Factual survey of the clinical use of deformable image registration software for radiotherapy in Japan

Noriyuki Kadoya, Satoshi Kito, Masahiko Kurooka, Masahide Saito, Akihiro Takemura, Naoki Tohyama, Masahide Tominaga, Yujiro Nakajima, Yukio Fujita, Yuki Miyabe

    Research output: Contribution to journalArticlepeer-review

    2 Citations (Scopus)

    Abstract

    Deformable image registration (DIR) has recently become commercially available in the field of radiotherapy. However, there was no detailed information regarding the use of DIR software at each medical institution. Thus, in this study, we surveyed the status of the clinical use of DIR software for radiotherapy in Japan. The Japan Society of Medical Physics and the Japanese Society for Radiation Oncology mailing lists were used to announce this survey. The questionnaire was created by investigators working under the research grant of the Japanese Society for Radiation Oncology (2017–2018) and intended for the collection of information regarding the use of DIR in radiotherapy. The survey was completed by 161 institutions in Japan. The survey results showed that dose accumulation was the most frequent purpose for which DIR was used in clinical practice (73%). Various commissioning methods were performed, although they were not standardized. Qualitative evaluation with actual patient images was the most commonly used method (28%), although 30% of the total number of responses (42% of institutions) reported that they do not perform commissioning. We surveyed the current status of clinical use of DIR software for radiotherapy in Japan for the first time. Our results indicated that a certain number of institutions used DIR software for clinical practice, and various commissioning methods were performed, although they were not standardized. Taken together, these findings highlight the need for a technically unified approach for commissioning and quality assurance for the use of DIR software in Japan.

    Original languageEnglish
    Pages (from-to)546-553
    Number of pages8
    JournalJournal of radiation research
    Volume60
    Issue number4
    DOIs
    Publication statusPublished - 2019 Jul

    Keywords

    • Deformable image registration
    • Dose accumulation
    • Propagation
    • Radiotherapy
    • Segmentation

    ASJC Scopus subject areas

    • Radiation
    • Radiology Nuclear Medicine and imaging
    • Health, Toxicology and Mutagenesis

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