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Fig. 1 | BMC Musculoskeletal Disorders

Fig. 1

From: Repeatability assessment of sodium (23Na) MRI at 7.0 T in healthy human calf muscle and preliminary results on tissue sodium concentrations in subjects with Addison’s disease

Fig. 1

Lower calf images of the left leg of a 25-year-old healthy woman, in the axial orientation. A Proton (1H) DESS image showing three segmented regions of muscles that were used for analysis: gastrocnemius medialis (GM) (red); tibialis anterior (TA) (yellow); and soleus (S) (green). B Sodium (23Na) image of the same participant. C Graph shows measured inversion recovery data (green points), and T1 relaxation curve fit (red line), and D T2.* relaxation time (measured data (green points); bi-exponential fit (blue curve), and mono-exponential fit (red curve)

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