Innovative nonagonal metamaterial-loaded open waveguides improve image quality in traveling-wave MRI, suggesting beneficial applications in high-field imaging.
Motivation: Enhancing Traveling-Wave MRI at 7 Tesla using a nonagon Geometry metamaterial in an open waveguide. Goal(s): Enhance the image quality of images obtained through the traveling-wave approach by utilizing a nonagonal-shaped metamaterial-loaded open waveguide. Approach: This approach involves a nonagonal-shaped metamaterial-loaded open waveguide filled with a saline solution, complemented by a transceiver designed with a bio-inspired surface coil. Results: Images obtained using the nonagonal-shape metamaterial-loaded waveguide exhibited a significantly improved signal-to-noise ratio and closely matched the image quality achieved with our in-house birdcage coils. Impact: enhance travelling wave MRI approach at 7 Tesla
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Solís-Nájera et al. (2025) studied this question.
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