Transmit Efficiency Across a Range of Field Strengths, Relative Permittivities and Transmit Coils

Transmit Efficiency Across a Range of Field Strengths, Relative Permittivities and Transmit Coils

Transmit efficiency is an important parameter in MRI to determine the quality of a coil, and it is affected by many parameters such as the frequency and the shape of the patient. The presence of a High-Permittivity Helmet significantly impacts the radiofrequency fields distribution. Through numerica...

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Bibliographic Details
Published in:2023 International Conference on Electromagnetics in Advanced Applications (ICEAA) pp. 438 - 439
Main Authors: Carluccio, Giuseppe, Collins, Christopher
Format: Conference Proceeding
Language:English
Published: IEEE 09-10-2023
Subjects:
Head
Helmet
High-Permittivity Materials
Magnetic resonance imaging
MRI
Numerical simulation
Permittivity
Radio frequency
Safety
Shape
Simulations
Transmit Efficiency
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Summary:Transmit efficiency is an important parameter in MRI to determine the quality of a coil, and it is affected by many parameters such as the frequency and the shape of the patient. The presence of a High-Permittivity Helmet significantly impacts the radiofrequency fields distribution. Through numerical simulations we have evaluated the dependence of the transmit efficiency with respect to the variation of many parameters, such as the frequency, the permittivity of the helmet, and the kind of used coil: the performances of a birdcage and of an 8 dipoles transmit array are compared.
ISSN:2766-2284
DOI:10.1109/ICEAA57318.2023.10297932