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A UHF probe for NMR micro-imaging experiments.

M Fan, P Gonord, S Kan

    Magnetic Resonance in Medicine
    |June 1, 1987
    PubMed
    Summary
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    This study presents a novel UHF probe design using a one-turn solenoid for homogeneous B1 fields in magnetic resonance imaging. The probe enables high-resolution micro-imaging experiments at 360 MHz.

    Area of Science:

    • Physics
    • Electrical Engineering
    • Biomedical Engineering

    Background:

    • Achieving homogeneous B1 fields is crucial for high-resolution Magnetic Resonance Imaging (MRI).
    • Traditional solenoid designs present limitations in field homogeneity for specific applications.
    • Ultra-High Frequency (UHF) spectroscopy requires advanced probe designs for optimal performance.

    Purpose of the Study:

    • To design and evaluate a UHF probe incorporating a one-turn solenoid for enhanced B1 field homogeneity.
    • To present a practical implementation of this probe for micro-imaging experiments.
    • To provide numerical analysis of solenoid inductance using established methods.

    Main Methods:

    • Design of a UHF probe featuring a one-turn solenoid and parallel-plate transmission line feeders.

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  • Implementation and testing of the probe in a 360-MHz spectrometer.
  • Numerical evaluation of solenoid inductance using King's method for elliptic integrals.

    • Main Results:

    • The designed UHF probe demonstrates potential for generating a more homogeneous B1 field compared to conventional structures.
    • The probe was successfully utilized in micro-imaging experiments at 360 MHz.
    • Accurate numerical evaluation of solenoid inductance was achieved.

    Conclusions:

    • The developed UHF probe design offers a promising solution for achieving homogeneous B1 fields in UHF MRI.
    • This probe facilitates advanced micro-imaging applications.
    • The study validates the theoretical advantages of solenoids for homogeneous field generation in MR systems.