Hilbert Fractal Inspired Dipoles for B1+ Field Control in Ultra-High Field MRI

Due to the wavelengths' reduction in the human tissues at ultra-high field MRI, head coils usually present B
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magnetic field inhomogeneities located at the brain's temporal lobes. Different approaches have effectively targeted this problem, at the cost of either decrease the B
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field in other regions or be uncomfortable to the patient. Here, we present a new approach based on Hilbert fractal inspired dipoles. Our structures improved simultaneously the B
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field in each temporal lobe without diminishing the B
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field in other parts of the brain or the patients' comfort.