One Coil to Light Them All: Broadband Body Coil for Multi-Frequency Imaging using a Coaxial Waveguide

Stefan Alt¹, Marco Mller¹, Armin Michael Nagel¹, Florian Meise¹, Reiner Umathum¹, Michael Bock¹

The native wave propagation mode of a coaxial waveguide (TEM) has no cut-off frequency, which offers the opportunity of broadband operation for mulit-nuclei studies. We acquired proton (¹H) and sodium (²³Na) images at four different Larmor frequencies from 63 to 297MHz using the same coaxial waveguide setup for both spin excitation and signal reception.