O. Gonen et al., DUAL INTERLEAVED H-1 AND PROTON-DECOUPLED-P-31 IN-VIVO CHEMICAL-SHIFTIMAGING OF HUMAN BRAIN, Magnetic resonance in medicine, 32(1), 1994, pp. 104-109
A technique is demonstrated to obtain interleaved proton (H-1) and H-1
-decoupled phosphorus (P-31) spectra of human brain using 2D CSI. A mo
dified commercial full-body imager and a dual-tuned birdcage head-coil
were employed. Because proton relaxation times are shorter than those
of phosphorus, TR(H-1) can be chosen to be shorter than TR(P-31), thu
s permitting a H-1 acquisition to be inserted in each P-31 cycle. The
scheme results in significant time savings as both CSI data sets are o
btained concurrently with patient loading, coil tuning, shimming, and
imaging needed to be done only once.