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Abstract #4289

Invisible receiver arrays? Proof of effective long distance RF arrays when tissue loss dominates

Kyung Min Nam1, Cezar Alborahal1, Kaizad Rustomji2, Tryfon Antonakakis3, Catalina Arteaga de Castro4, Jannie P. Wijnen1, and Dennis W.J. Klomp1
1Imaging and Oncology, UMC Utrecht, Utrecht, Netherlands, 2Multiwave Innovation, Marseille, France, 3Multiwave Innovation, Geneva, Switzerland, 4Tesla Dynamic Coils, Zaltbommel, Netherlands

High-quality MRI uses arrays of local receiver coils positioned close to the region of interest to maximize acceleration performance and SNR in the images. This comes at the expense of patient comfort, particularly when considering surgical interventions under close to real-time MRI guidance. Here we demonstrate that when the tissue dominates the noise source over the electronic noise, the distance of the coil array to the tissue can be increased beyond the head to the bore liner of a head MR system without substantially decreasing the acceleration performance and intrinsic signal to noise compared to commercially available head coils.

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