Effects of muscle fiber orientation to main magnetic field on muscle metabolite profiles for magnetic resonance spectroscopy acquisition

Figure 5 Metabolites at different angle ratios to muscle metabolite at 0°. Each lipid (IMCL (CH₃), EMCL (CH₃), IMCL (CH₂), and EMCL (CH₂)) was calculated as a ratio to creatine and then was normalized with the average of lipid/Cr ratio set at 0°. At 30°, 60°, and 90°, there was a tendency for the ratio to decrease when compared to 0°. The comparisons between 0° and the different angles were performed using Wilcoxon signed-rank test with ^aP-value < 0.05 being significantly different. Cr: Creatine; EMCL: Extramyocellular lipids; IMCL: Intramyocellular lipids.