RADIATION PROTECTION ›› 2025, Vol. 45 ›› Issue (3): 292-298.

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Analysis of MRI integrated diagnostic and therapeutic equipment shielding technology

WANG Xiaowa1,2,3, SUN Weiming1,2,3, DAI Xiaoya1,2,3   

  1. 1. Shanghai Proton and Heavy Ion Center, Shanghai 201321;
    2. Shanghai Key Laboratory of Radiation Oncology, Shanghai 201321;
    3. Shanghai Engineering Research Center of Proton and Heavy Ion Radiation Therapy, Shanghai 201321
  • Received:2024-05-22 Online:2025-05-20 Published:2025-05-21

Abstract: Magnetic Resonance Imaging (MRI) is a pivotal technology in modern medical diagnostics, renowned for its high resolution and excellent contrast of soft tissues. In recent years, the integration of MRI technology with other diagnostic and therapeutic devices, such as Positron Emission Tomography (PET), Single Photon Emission Computed Tomography (SPECT), Electrocardiography (ECG), Electroencephalography (EEG), and radiation therapy equipment like linear accelerators and proton therapy accelerators, has significantly enhanced the precision and efficiency of diagnostics and treatments. This paper discusses the shielding design and requirements for these integrated technologies, including technical aspects of magnetic and radiation shielding, as well as methodological approaches for both the equipment’s own shielding and the shielding of the room environment. This paper also introduces the shielding requirements and influencing factors for the integrated equipment itself, and also proposes that the shielding technology for integrated equipment is not a simple “1+1” model of magnetic shielding plus radiation shielding, but rather some certain synergistic effect involved.

Key words: integrated technologies, MRI, shield design, diagnostic devices

CLC Number: 

  • R143