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<p>Flexible coils are being developed to alleviate patient discomfort, reflecting ongoing trends in coil design. However, flexibility introduces challenges such as resonant frequency shifts, connection instability, and reduced durability, limiting dynamic and multi-posture imaging. In this study, we developed a flexible adaptive MRI receive coil integrating a deformation-driven frequency compensation structure and a modulus matching layer. The proposed coil achieves more than a 30-fold improvement in resonance frequency stability under 0–30% strain, as quantified by a frequency stability factor reaching several tens in the typical body-conforming strain range, and it maintains frequency stability within 30% stretching and achieves a 77% SNR (Signal-to-Noise Ratio) improvement over commercial coils. Utilizing flexible materials and robust interconnects, it enables high-quality imaging of multiple anatomical regions, including the neck, wrist, and knee joints, and supports continuous multi-posture and dynamic joint movement imaging. Beyond fulfilling routine clinical imaging demands, the proposed coil facilitates MRI in scenarios involving patient motion, potentially providing complementary diagnostic information to conventional designs.</p>

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Deformation-stabilized flexible receive coil with modulus-transition interfaces for high-fidelity static and multi-pose dynamic MRI

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年7月20日

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  • Haojie Li,
  • Yizhi Zhou,
  • Ziqi Zhou,
  • Runyu Yang,
  • Rui Li,
  • Rongzan Lin,
  • Guangmin Yang,
  • Yonghong Fan,
  • Xiao Han,
  • Zhe Zhao,
  • Huijun Chen,
  • Ran Liu

摘要

Flexible coils are being developed to alleviate patient discomfort, reflecting ongoing trends in coil design. However, flexibility introduces challenges such as resonant frequency shifts, connection instability, and reduced durability, limiting dynamic and multi-posture imaging. In this study, we developed a flexible adaptive MRI receive coil integrating a deformation-driven frequency compensation structure and a modulus matching layer. The proposed coil achieves more than a 30-fold improvement in resonance frequency stability under 0–30% strain, as quantified by a frequency stability factor reaching several tens in the typical body-conforming strain range, and it maintains frequency stability within 30% stretching and achieves a 77% SNR (Signal-to-Noise Ratio) improvement over commercial coils. Utilizing flexible materials and robust interconnects, it enables high-quality imaging of multiple anatomical regions, including the neck, wrist, and knee joints, and supports continuous multi-posture and dynamic joint movement imaging. Beyond fulfilling routine clinical imaging demands, the proposed coil facilitates MRI in scenarios involving patient motion, potentially providing complementary diagnostic information to conventional designs.