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Transmit/receive Radiofrequency Coil with Individually Shielded Elements by Kyle M. Gilbert; Andrew T. Curtis; Joseph S. Gati; L. Martyn Klassen; Lauren E. Villemaire; Ravi S. Menon is a Medicine article available to read on EtoBox.

What is Transmit/receive Radiofrequency Coil with Individually Shielded Elements about?

## Abstract A novel method for decoupling coil elements of transmit/receive (transceive) arrays is reported. Each element of a coil array is shielded both concentrically and radially to reduce the magnetic flux linkage between neighboring coils; this substantially reduces the mutual inductance between coil elements and allows them to behave independently. A six‐channel transceive coil was developed using this decoupling scheme and compared with two conventional decoupling schemes: the partial overlapping of adjacent elements and capacitive decoupling. The radiofrequency coils were designed to image the human head and were tested on a 7‐T Varian scanner. The decoupling, transmit uniformity, transmit efficiency, signal‐to‐noise ratio, and geometry factors were compared between coils. The individually shielded coil achieved higher minimum isolation between elements (2.7–4.0 dB) and lower geometry factors (2–14%) than the overlapped and capacitively decoupled coils, while showing a reduction in transmit efficiency (2.8–5.9 dB) and signal‐to‐noise ratio (up to 34%). No difference was found in the power absorbed by the sample during a 90° radiofrequency pulse. The inset distance of coil

Who reads Transmit/receive Radiofrequency Coil with Individually Shielded Elements?

Author

Kyle M. Gilbert; Andrew T. Curtis; Joseph S. Gati; L. Martyn Klassen; Lauren E. Villemaire; Ravi S. Menon

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0740-3194)

Published

2010

Language

EN

Field

Medicine (Health Sciences)