TABLE 1.

Summary of the coil combination methods that were evaluated

Method	Abbrevation	Phase Estimation	Amplitude Weights
Unsuppressed water peak from separate dataset	Wvoxel	voxel-by-voxel	reference peak hight or calibration images
Residual water peak from same dataset	RWvoxel	voxel-by-voxel	reference peak height or calibration images
Residual water peak from same dataset	RWcentral	constant offset	reference peak height or calibration images
Generalized least squares using residual water peak	GLSRW	direct estimation from peak region
NAA peak from same dataset	NAAvoxel	voxel-by-voxel	reference peak height or calibration images
NAA peak from same dataset	NAAcentral	constant offset	reference peak height or calibration images
Generalized least squares using NAA peak	GLSNAA	direct estimation from peak region
First-point FID phasing	FPphasing	voxel-by-voxel	first FID point height or calibration images
Whitened singular valued decomposition	WSVD	direct estimation from spectra