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Proposed Safety Guidelines for Patient Assistants in an Open MRI Environment

Author

Listed:
  • Sukhoon Oh

    (Bio-Chemical Analysis Team, Korea Basic Science Institute, Cheongju 28119, Republic of Korea
    These authors contributed equally to this work.)

  • Seon-Eui Hong

    (Radio & Satellite Research Division, Electronics and Telecommunications Research Institute (ETRI), Daejeon 34129, Republic of Korea
    These authors contributed equally to this work.)

  • Hyung-Do Choi

    (Radio & Satellite Research Division, Electronics and Telecommunications Research Institute (ETRI), Daejeon 34129, Republic of Korea)

Abstract

The wide-open side of an open magnetic resonance imaging (MRI) system allows a patient to easily contact the patient assistant during MRI scans. A wide-open-shaped magnet is highly effective when interventional procedures are necessary. Patient assistants can provide comfort by holding a part of the patient’s body. Because current regulations or guidelines are concerned with only patient radio frequency (RF) safety, investigations on the safety of patient assistants exposed to high-magnetic field MRI (up to 1.2 T) are required. In this study, five different poses of patient assistants were numerically simulated at a 1.2 T open MRI system to determine the impact of poses on the RF exposure level. The 10-g averaged specific absorption rate (SAR) levels were analyzed for the poses of each patient assistant wearing gloves. Compared with the patient, up to 29.8% of the patient SAR was observed in the patient assistant. When the patient assistant wore latex gloves, a 63.7% reduction in the 10-g averaged SAR level was observed, which could be a remedy to minimize possible RF hazards. To prevent possible RF hazards during MRI scans, certain clauses regarding the patient assistant’s poses or wearing gloves must be added to the existing MRI screening forms.

Suggested Citation

  • Sukhoon Oh & Seon-Eui Hong & Hyung-Do Choi, 2022. "Proposed Safety Guidelines for Patient Assistants in an Open MRI Environment," IJERPH, MDPI, vol. 19(22), pages 1-9, November.
    • Handle: RePEc:gam:jijerp:v:19:y:2022:i:22:p:15185-:d:975821
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    References listed on IDEAS

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    1. Wenli Liu & Hongkai Wang & Pu Zhang & Chengwei Li & Jie Sun & Zhaofeng Chen & Shengkui Xing & Ping Liang & Tongning Wu, 2019. "Statistical Evaluation of Radiofrequency Exposure during Magnetic Resonant Imaging: Application of Whole-Body Individual Human Model and Body Motion in the Coil," IJERPH, MDPI, vol. 16(6), pages 1-16, March.
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