X-ray compatible radiofrequency coil for magnetic resonance imaging

✍ Scribed by Viola Rieke; Arundhuti Ganguly; Bruce L. Daniel; Greig Scott; John M. Pauly; Rebecca Fahrig; Norbert J. Pelc; Kim Butts

• Publisher: John Wiley and Sons
• Year: 2005
• Tongue: English
• Weight: 419 KB
• Volume: 53
• Category: Article
• ISSN: 0740-3194
• DOI: 10.1002/mrm.20494

✦ Synopsis

Abstract

The range of RF coils that can be used in combined X‐ray/MR (XMR) systems is limited because many conventional coils contain highly X‐ray attenuating materials that are visible in the X‐ray images and potentially obscure patient anatomy. In this study, an X‐ray compatible coil design that has minimal X‐ray attenuation in the field of view (FOV) of the X‐ray image is presented. In this design, aluminum is used for the loop conductor and discrete elements of the coil are eliminated from the X‐ray FOV. A surface coil and an abdominal phased array coil were built using the X‐ray compatible design. X‐ray attenuation and MR imaging properties of the coils were evaluated and compared to conventional coils. The X‐ray compatible phased array coil was used to image patients during two interventional procedures in the XMR system. The X‐ray compatible coils allowed for fluoroscopic X‐ray image acquisition, without degradation by the coil, while maintaining excellent MR imaging qualities. Magn Reson Med 53:1409–1414, 2005. © 2005 Wiley‐Liss, Inc.