Investigation of Magnetic Wall Decoupling for planar Quadrature RF Array coils using Common-Mode Differential-mode Resonators.

Abstract

Parallel imaging using quadrature coil arrays can help to reach their ultimate intrinsic signal-to-noise ratio (uiSNR) and higher spatial resolution at ultra-high fields, because quadrature RF coils provide higher sensitivity and reduced excitation power over the commonly used linear polarized RF transceivers. However, due to the complicated structure and difficulties in achieving sufficient electromagnetic decoupling, it is technically challenging in designing multichannel quadrature RF coil arrays, particularly at ultrahigh fields. In this work, we design and investigate the magnetic wall decoupled common-mode differential mode quadrature RF arrays for ultrahigh field 7T MR imaging applications.