Dual Frequency Coil Array for MR Imaging

An array coil to perform in vivo Magnetic Resonance Imaging and Spectroscopy was developed to study the intestinal wall. It consisted of two surface rectangular‐shaped coils mounted on cylindrical structure forming an orthogonal assembly. Since this design is intended to generate images and spectra, each element was tuned to a different resonant frequency: a) imaging: 200 MHz (1H) and b) spectroscopy: 81 MHz (31P). However, at this stage of the research, imaging experiments were only conducted on a Bruker 4.7 Tesla animal system. High‐resolution images were obtained from a saline filled phantom and from the intestinal wall of a fully anaesthetised rabbit. The dual frequency coil array can be used to study the pathophysiology of intestinal ischemia.