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Abstract #3724

A Rotatable Twisted Solenoid TRASE Phase Gradient Head Coil

Christopher J Sedlock1, Aaron R Purchase1, Boguslaw Tomanek 1, and Jonathan C Sharp1
1University of Alberta, Edmonton, AB, Canada

Synopsis

Keywords: Hybrid & Novel Systems Technology, RF Arrays & Systems, TRASE

TRASE is an MR encoding sequence that utilizes phase gradients of the RF transmit field for k-space encoding. A promising RF coil for TRASE imaging is the twisted solenoid due to its compact design and efficient B1 field. In this work we present the first TRASE head coil, consisting of a geometrically decoupled parallel-transmit (pTx) rotatable twisted solenoid pair. No RF switching hardware is required. The encoding direction of this coil pair is set by rotation angle, allowing for 2D radial k-space acquisitions. This method is compatible with the addition of a static B0 slice selection gradient for multi-slice.

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