Spectroscopic Imaging of 1H at 3T: Comparing SNR between Traditional Phase Encoding and Echo-Planar Techniques in the Human Brain
Ozturk E, Chen A, Pels P, Nelson S, Zierhut M, Cunningham C, Vigneron D
UCSF/UCB Joint Graduate Group in Bioengineering, UCSF
The effects of various echo-planar spectroscopic imaging (EPSI) techniques on data quality were investigated for 1H spectroscopy in the human brain. Specifically, signal to noise ratio (SNR) was compared across imaging techniques for creatine, choline, and NAA. The results show a slight loss in relative SNR when compared to standard phase-encoded chemical shift imaging (CSI) throughout the various EPSI techniques. However, the spectroscopic data are still clinically acceptable, and there are less lipid aliasing artifacts.