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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2009-06-04
A Simple Numerical Method to Compute the Signal-to-Noise Ratio of a Magnetic Resonance Imaging Surface Coil
By
Rafael Rojas Rodriguez,

    Dr. Rafael Rojas Rodriguez

    Universidad Autonoma Metropolitana Iztapalapa

    México

    Homepage

Alfredo O. Rodriguez Gonzalez

    Dr. Alfredo O. Rodriguez Gonzalez

    Electrical Engineering

    Universidad Autonoma Metropolitana Iztapalapa

    México

    Homepage

Progress In Electromagnetics Research M, Vol. 7, 109-122, 2009
doi:10.2528/PIERM09040604 | Google Scholar

Abstract
The quality of a magnetic resonance image can be reliably measured by the signal-to-noise ratio. This widely accepted parameter is a function of the magnetic field generated by the coil and the electric field produced by the sample to be imaged. A simple numerical method is proposed to calculate the coil signal-to-noise ratio of a circular-shaped coil and a spherical phantom. The phantom is composed of two-concentric sphere simulating a brain-skull model. The electromagnetic fields produced were then numerically computed by solving Maxwell's equations with the finite element method implemented in a commercial software tool. The electric and magnetic fields were used to numerically determine the signal-to-noise ratio using the quasi-static approach. The numerical results demonstrated that this simple method is able to calcualte the signal-to-noise ratio of surface coils with simple coil geometries involving a simulated phantom.
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Citation
Rafael Rojas Rodriguez, and Alfredo O. Rodriguez Gonzalez, "A Simple Numerical Method to Compute the Signal-to-Noise Ratio of a Magnetic Resonance Imaging Surface Coil," Progress In Electromagnetics Research M, Vol. 7, 109-122, 2009.
doi:10.2528/PIERM09040604
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