A rigid, stand-off hybrid dipole, and birdcage coil array for 7 T body imaging.

ABSTRACT:

Purpose

To design a robust and patient friendly radiofrequency coil array (8-channel transmit and 16-channel receive) for cross-sectional body imaging at 7 T, and to improve our understanding of the combination of dipole and loop like elements for ultra high field strengths.

Methods

The hybrid coil array was optimized in eletromagnetic simulations. Considered array candidates were the dipole, loop and birdcage array. The winning design was constructed and the signal-to-noise (SNR) was compared to a close fitting array at 3 T. Transmit and receive properties for different body sizes were assessed, and multi-parametric maps were acquired with the Plug-and-Play MRF method.

Results

The winning design consists of a dipole array for transceive combined with a birdcage array

SUBMITTER: Paska J 

PROVIDER: S-EPMC5910212 | biostudies-literature | 2018 Aug

REPOSITORIES: biostudies-literature