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Flexible Electromagnetic Cap for Three-Dimensional Electromagnetic Head Imaging.

Abdulrahman Alqadami, Ali Zamani, Adnan Trakic

    IEEE Transactions on Bio-Medical Engineering
    |May 27, 2021
    PubMed
    Summary
    This summary is machine-generated.

    A new wearable brain imaging system offers fast, portable stroke diagnosis. This cost-effective device uses an antenna array in a flexible cap for early detection and onsite brain imaging.

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    Area of Science:

    • Biomedical Engineering
    • Medical Imaging
    • Electromagnetics

    Background:

    • Timely treatment is critical for stroke patient survival.
    • Current diagnostic methods can be slow and lack portability.
    • A need exists for rapid, cost-effective, and on-the-spot stroke diagnosis.

    Purpose of the Study:

    • To present a wearable, lightweight 3D electromagnetic head imaging system for rapid brain stroke diagnosis.
    • To develop a portable device for early and on-the-spot diagnosis of stroke patients.

    Main Methods:

    • A flexible cap with a 24-element planar antenna array made from a polymer-ceramic composite (RTV silicone rubber and aluminum oxide).
    • A flexible matching medium layer to improve impedance matching with the skin.
    • Utilized antenna elements with low specific absorption rate (SAR) values over 0.9-2.5 GHz.
    • Experimental verification on 3D realistic head phantoms with various stroke scenarios.

    Main Results:

    • Reconstructed 3D and 2D multi-slice images of brain phantoms.
    • Demonstrated applicability of beamforming and polar sensitivity encoding (PSE) algorithms for image processing.
    • Verified the system's capability for onsite brain imaging.

    Conclusions:

    • The developed wearable electromagnetic head imaging system shows significant potential for rapid, onsite brain stroke diagnosis.
    • The system's design offers a cost-effective and portable solution for early stroke detection.
    • Further validation could lead to improved patient outcomes through timely intervention.