B1+ Uniformity in Birdcage Body Coils Versus the Alignment and Shape of the RF Shield

Arslan Amjad¹, Eddy B. Boskamp¹

In order to make an image without shading, it is critical for the body coil to produce homogeneous B1+ field inside the imaging volume. Any variation in the shape or the alignment of either the body coil or the RF shield can deteriorate B1+ homogeneity and hence image quality. In this work the impact on B1+ field homogeneity using numerical simulations is studied under various non-ideal conditions.