Jyh-Miin Lin1,
Hsiao-Wen Chung2, Shang-Yueh Tsai3
1Department of Radiology, Mackay
Memorial Hospital, Taipei, Taiwan; 2Department of Electrical
Engineering, National Taiwan University, Taipei, Taiwan; 3Department
of Electrical Engineering, Chang Gung University, Tao Yuan, Taiwan
1H
non-water suppressed(NWS) MRS is a developing technique to in vivo
metabolites concentration, with high accuracy than conventional water
suppressed(WS) MRS. In NWS MRS, complete removal of water signal is critical
for quantifying metabolites concentration. We propose a novel
postacqusitional (QZ-bac) algorithm to eliminate water peaks and water related
sidebands. With this method, the water related frequency modulation signals
were completely removed by exploiting the antisymmetry property. Computer
simulations and in vivo demonstration were shown.
Keywords