Residual dipolar coupling of the Cr/PCr methyl resonance in resting human medial gastrocnemius muscle.
This paper presents a detailed analysis of the TE dependence of the creatine methyl proton signal at 3.02 ppm, resulting from a symmetric PRESS sequence applied to the resting human gastrocnemius muscle. The analysis shows that a two-component decay of the central peak of the dipolar-coupled-methyl triplet should be interpreted as the superposition of a rapid ( approximately 34 msec) dipolar dephasing and a less rapid ( approximately 162 msec) transverse relaxation. These data do not support a two-pool hypothesis for TE dependence of this signal. Magn Reson Med 42:421-424, 1999.
Hanstock
C C
CC
Department of Biomedical Engineering, University of Alberta, Edmonton, Alberta, Canada.
Thompson
R B
RB
Trump
M E
ME
Gheorghiu
D
D
Hochachka
P W
PW
Allen
P S
PS
D000465:Algorithms; D003401:Creatine / Q000378:metabolism*; D006801:Humans; D009682:Magnetic Resonance Spectroscopy; D015233:Models, Statistical; D018482:Muscle, Skeletal / Q000378:metabolism*; D010725:Phosphocreatine / Q000378:metabolism*; D011522:Protons
D011522:Protons; D010725:Phosphocreatine; D003401:Creatine