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A Web-based searchable system to confirm magnetic resonance compatibility of implantable medical devices in Japan: a preliminary study

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Abstract

Confirmation of the magnetic resonance (MR) compatibility of implanted medical devices (IMDs) is mandatory before conducting magnetic resonance imaging (MRI) examinations. In Japan, few such confirmation methods are in use, and they are time-consuming. This study aimed to develop a Web-based searchable MR safety information system to confirm IMD compatibility and to evaluate the usefulness of the system. First, MR safety information for intravascular stents and stent grafts sold in Japan was gathered by interviewing 20 manufacturers. These IMDs were categorized based on the descriptions available on medical package inserts as: “MR Safe,” “MR Conditional,” “MR Unsafe,” “Unknown,” and “No Medical Package Insert Available”. An MR safety information database for implants was created based on previously proposed item lists. Finally, a Web-based searchable system was developed using this database. A questionnaire was given to health-care personnel in Japan to evaluate the usefulness of this system. Seventy-nine datasets were collected using information provided by 12 manufacturers and by investigating the medical packaging of the IMDs. Although the datasets must be updated by collecting data from other manufacturers, this system facilitates the easy and rapid acquisition of MR safety information for IMDs, thereby improving the safety of MRI examinations.

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Acknowledgements

The authors would like to thank Yoshiyuki Ishimori, Ph.D., for his useful discussions and support.

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Authors and Affiliations

  1. Department of Medical Imaging, Faculty of Life Sciences, Kumamoto University, 4-24-1 Kuhonji, Chuo-ku, Kumamoto, 862-0976, Japan

    Yasuhiro Fujiwara & Ryuji Murakami

  2. Medie Corporation Ltd, Tokyo, Japan

    Hitoshi Fujioka, Tomoko Watanabe & Maiko Sekiguchi

Authors
  1. Yasuhiro Fujiwara
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  2. Hitoshi Fujioka
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  3. Tomoko Watanabe
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  4. Maiko Sekiguchi
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  5. Ryuji Murakami
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Corresponding author

Correspondence to Yasuhiro Fujiwara.

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Conflict of interest

The authors Hitoshi Fujioka, Tomoko Watanabe, and Maiko Sekiguchi are employees of Medie Corporation, Ltd., and collaborating researchers. This study was supported in part by a research grant from Medie Corporation, Ltd.

Human and animal rights

All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Declaration of Helsinki and its later amendments, or comparable ethical standards.

Informed consent

Informed consent was obtained from all individual participants included in this study.

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Fujiwara, Y., Fujioka, H., Watanabe, T. et al. A Web-based searchable system to confirm magnetic resonance compatibility of implantable medical devices in Japan: a preliminary study. Radiol Phys Technol 10, 340–348 (2017). https://doi.org/10.1007/s12194-017-0409-2

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  • DOI: https://doi.org/10.1007/s12194-017-0409-2

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