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Abstract #4106

Rendering MRI Coils Less Visible in MR images

Elizaveta Motovilova1,2, Frida Maria Galaviz Huerta3, Jana Vincent4, James Shin1, Ek Tsoon Tan2, Fraser Robb4, Victor Taracila4, Darryl Sneag2, and Simone Angela Winkler1
1Department of Radiology, Weill Cornell Medicine, New York, NY, United States, 2Department of Radiology and Imaging, Hospital for Special Surgery, New York, NY, United States, 3Department of Psychology, New York University, New York, NY, United States, 4GE Healthcare, Aurora, OH, United States

Synopsis

It is commonly undesirable to see an RF coil in MR images. Novel research into innovative coil designs often involves the use of new materials that can be visible in MR images. In this abstract, we address this limitation by doping the coil substrate with Magnevist, drawing from a little-known phenomenon of signal hypointensity via T2-shortening for large concentrations of gadolinium-based (Gd) contrast agents that is especially applicable to hydrogen-rich materials. We show successful reduction of MR signal of >60% using our previously developed stretchable, liquid-metal based Ecoflex coil (6) using relaxometry measurements and in vitro experiments.

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Keywords