Article

A high-impedance detector-array glove for magnetic resonance imaging of the hand

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Abstract

Densely packed resonant structures used for magnetic resonance imaging (MRI), such as nuclear magnetic resonance phased array detectors, suffer from resonant inductive coupling, which restricts the coil design to fixed geometries, imposes performance limitations and narrows the scope of MRI experiments to motionless subjects. Here, we report the design of high-impedance detectors, and the fabrication and performance of a wearable detector array for MRI of the hand, that cloak themselves from electrodynamic interactions with neighbouring elements. We experimentally verified that the detectors do not suffer from the signal-to-noise degradation mechanisms typically observed with the use of traditional low-impedance elements. The detectors are adaptive and can accommodate movement, providing access to the imaging of soft-tissue biomechanics with unprecedented flexibility. The design of the wearable detector glove exemplifies the potential of high-impedance detectors in enabling a wide range of applications that are not well suited to traditional coil designs.

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Acknowledgements

This work was performed under the rubric of the Center for Advanced Imaging Innovation and Research (www.cai2r.net), a NIBIB Biomedical Technology Resource Center (NIH P41 EB017183). We thank R. Brown for critically reading the manuscript, M. Vester for many valuable discussions and Z. Yu for help during the experiments.

Author information

Affiliations

  1. Bernard and Irene Schwartz Center for Biomedical Imaging, New York University School of Medicine, New York, NY, USA

    • Bei Zhang
    • , Daniel K. Sodickson
    •  & Martijn A. Cloos
  2. Center for Advanced Imaging Innovation and Research, New York University School of Medicine, New York, NY, USA

    • Bei Zhang
    • , Daniel K. Sodickson
    •  & Martijn A. Cloos
  3. Sackler Institute of Graduate Biomedical Sciences, New York University School of Medicine, New York, NY, USA

    • Daniel K. Sodickson
    •  & Martijn A. Cloos
  4. Tech4Health, NYU Langone Health, New York, NY, USA

    • Daniel K. Sodickson
    •  & Martijn A. Cloos

Authors

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Contributions

B.Z. built the coils and interfaces. B.Z. and M.A.C. designed the experiments and collected the data. B.Z., D.K.S. and M.A.C. analysed the results and wrote the manuscript.

Competing interests

NYU has filed provisional patent applications directed to this technology.

Corresponding authors

Correspondence to Bei Zhang or Martijn A. Cloos.

Supplementary information

  1. Supplementary Information

    Supplementary figures and video captions.

  2. Reporting Summary

  3. Supplementary Video 1

    Magnetic resonance imaging of joint kinematics while playing piano.

  4. Supplementary Video 2

    Magnetic resonance imaging of joint kinematics when grabbing objects.