Meeting Banner
Abstract #3835

Design and Comparison of Two 8-Channel Transmit/Receive Radiofrequency Arrays for in Vivo Rodent Imaging on a 7T Human Whole-Body MRI System

Stephan Orzada1,2, Stefan Maderwald1,2, Sophia L. Gricke2, Nina Parohl2, Susanne C. Ladd1,2, Mark E. Ladd1,2, Harald H. Quick1,3

1Erwin L. Hahn Institute for Magnetic Resonance Imaging, Essen, NRW, Germany; 2Department of Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, Essen, NRW, Germany; 3Institute of Medical Physics, Friedrich-Alexander-University Erlangen-Nurnberg, Erlangen, Germany

MRI of rodents is an ever growing application when translatory imaging research from mouse to man is envisioned. In this study, two different multi-channel transmit/receive radiofrequency coil arrays have been designed for high-resolution rodent imaging on a 7T whole-body human MRI system. Both arrays have been evaluated in comparative phantom experiments and in vivo high-resolution MRI in rats. Both coil setups provided high signal-to-noise-ratio in rodents. While the 8-channel loop radiofrequency array with its larger inner diameter provided better overall signal homogeneity, the 8-channel novel stripline radiofrequency array design provided overall higher signal-to-noise-ratio and better parallel imaging acceleration performance.