Time-domain combination of MR spectroscopy data acquired using phased-array coils.
A new method for efficiently processing MRS data acquired with phased-array coils is presented. The method consists of performing phase compensation (i.e., redefining the signal phase relative to a common reference) of the signals in the time domain prior to combining the signals. The resulting spectra are equivalent to those obtained by previously published methods for phased-array spectral data processing (i.e., processing the signals individually and then combining them in the frequency domain). The method allows spectra acquired with phased-array coils to be processed as efficiently as those acquired with non-phased-array coils. Both single voxel spectroscopy (SVS) and chemical shift imaging (CSI) data sets may be processed by this method.
Brown
Mark A
MA
Siemens Training and Development Center, Siemens Medical Solutions, Cary, North Carolina 27511, USA. mark.a.brown@siemens.com
D009682:Magnetic Resonance Spectroscopy / Q000295:instrumentation*; D008962:Models, Theoretical; D019047:Phantoms, Imaging; D012815:Signal Processing, Computer-Assisted; D012984:Software