A geometrically adjustable 16-channel transmit/receive transmission line array for improved RF efficiency and parallel imaging performance at 7 Tesla

Gregor Adriany; Pierre Francois Van De Moortele; Johannes Ritter; Steen Moeller; Edward J. Auerbach; Can Akgün; Carl J. Snyder; Thomas Vaughan; Kâmil Uǧurbil

doi:10.1002/mrm.21488

A geometrically adjustable 16-channel transmit/receive transmission line array for improved RF efficiency and parallel imaging performance at 7 Tesla

Gregor Adriany, Pierre Francois Van De Moortele, Johannes Ritter, Steen Moeller, Edward J. Auerbach, Can Akgün, Carl J. Snyder, Thomas Vaughan, Kâmil Uǧurbil

Center for Magnetic Resonance Research

Research output: Contribution to journal › Article › peer-review

178 Scopus citations

Abstract

A novel geometrically adjustable transceiver array system is presented. A key feature of the geometrically adjustable array was the introduction of decoupling capacitors that allow for automatic change in capacitance dependent on neighboring resonant element distance. The 16-element head array version of such an adjustable coil based on transmission line technology was compared to fixed geometry transmission line arrays (TLAs) of various sizes at 7T. The focus of this comparison was on parallel imaging performance, RF transmit efficiency, and signal-to-noise ratio (SNR). Significant gains in parallel imaging performance and SNR were observed for the new coil and attributed to its adjustability and to the design of the individual elements with a three-sided ground plane.

Original language	English (US)
Pages (from-to)	590-597
Number of pages	8
Journal	Magnetic resonance in medicine
Volume	59
Issue number	3
DOIs	https://doi.org/10.1002/mrm.21488
State	Published - Mar 2008

Keywords

7T
Flexible array coil
High-field MRI
Parallel imaging
RF coil design
Transmission line coil
Transmit array coil

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Adriany, G., Van De Moortele, P. F., Ritter, J., Moeller, S., Auerbach, E. J., Akgün, C., Snyder, C. J., Vaughan, T., & Uǧurbil, K. (2008). A geometrically adjustable 16-channel transmit/receive transmission line array for improved RF efficiency and parallel imaging performance at 7 Tesla. Magnetic resonance in medicine, 59(3), 590-597. https://doi.org/10.1002/mrm.21488

Adriany, G, Van De Moortele, PF, Ritter, J, Moeller, S , Auerbach, EJ, Akgün, C, Snyder, CJ, Vaughan, T & Uǧurbil, K 2008, 'A geometrically adjustable 16-channel transmit/receive transmission line array for improved RF efficiency and parallel imaging performance at 7 Tesla', Magnetic resonance in medicine, vol. 59, no. 3, pp. 590-597. https://doi.org/10.1002/mrm.21488

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AU - Auerbach, Edward J.

AU - Akgün, Can

AU - Snyder, Carl J.

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A geometrically adjustable 16-channel transmit/receive transmission line array for improved RF efficiency and parallel imaging performance at 7 Tesla

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