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Related Experiment Video

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Multiple-mouse Neuroanatomical Magnetic Resonance Imaging
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A Flexible and Modular Receiver Coil Array for Magnetic Resonance Imaging.

Jhy-Neng Tasso Yeh, Jo-Fu Lotus Lin, Yi-Tien Li

    IEEE Transactions on Medical Imaging
    |October 9, 2018
    PubMed
    Summary

    We developed a flexible MRI receiver coil array that conforms to different body shapes. This innovative design offers superior signal-to-noise ratio (SNR) for clearer anatomical imaging.

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    Area of Science:

    • Biomedical Engineering
    • Medical Imaging Physics

    Background:

    • Magnetic Resonance Imaging (MRI) requires specialized receiver coils for optimal image quality.
    • Existing flexible MRI coils often struggle with maintaining performance across diverse anatomical geometries.

    Purpose of the Study:

    • To design and evaluate a novel flexible, form-fitting MRI receiver coil array.
    • To achieve robust coil decoupling and enhanced signal-to-noise ratio (SNR) for anatomical imaging.

    Main Methods:

    • Assembled individual coil modules with circumferential shielding structures.
    • Utilized full-wave electromagnetic simulations and imaging experiments to assess decoupling.
    • Acquired anatomical images of human brain, calf, and knee using a 7-channel prototype on a 3T MRI system.

    Main Results:

    • Demonstrated good coil decoupling on both flat and curved surfaces (S21 magnitude between -18.1 dB and -19.9 dB).
    • Achieved excellent decoupling with average off-diagonal noise correlation matrix entries < 0.047.
    • Acquired high-quality anatomical images, with SNR surpassing commercial arrays.

    Conclusions:

    • The proposed flexible form-fitting MRI receiver coil array provides robust decoupling and superior SNR.
    • This design is suitable for MRI applications requiring adaptable receiver arrays for various anatomies.