Investigation of Techniques for Multi Element Coil Combination for 32 Channel 7T MRS

Emma Louise Hall¹, Mary C. Stephenson¹, Darren Price¹, Peter G. Morris¹

In magnetic resonance spectroscopy (MRS), the acquisition of data from multi-element receive coils is becoming common. As the number of coil elements increases the need arises for robust reconstruction methods. Here we compare three methods based on signal or signal and noise weighting. We demonstrate this on for proton MRS data acquired using a 32 channel receive coil at 7 Tesla acquired in different brain regions. We find that the visual cortex benefitted the most, whereas medial prefrontal cortex was relatively unaffected.