FIG 7. Accumulated Cho and Cr measurements.

A, Scatter plots of Cho SI versus pO2.

B, Scatter plots of Cho/H₂O SI versus pO₂. The correlation coefficients are -0.43 and-0.45, respectively. The average water signal was used for normalizing the three samples darkened black boxes.

C, Box and whiskers plots of Cho SI for three data groups: pO2 < 10 mm Hg, pO2 10 mm Hg, and muscle. The mean Cho values are annotated, and the data were not statistically different.

D, Box and whiskers plots of Cho:Cr ratios show statistically significant differentiation between muscle and cancer. The mean values are annotated.