Fig. 2From: Quantitative assessment of muscle injury by 23Na magnetic resonance imaging 1H-MR imaging [T1-weighted fast-low-angle-shot (FLASH)-sequence, left] and 23Na-MR imaging (right) of both lower legs 2 weeks after injury. The area of hyperintense Na+ rich tissue was reduced, but could still be clearly visualized at the level of the left medial gastrocnemius muscle (arrow, Na+ concentration compared to the corresponding soft tissue of the contralateral non-affected leg: 37.5 vs. 18.5 mmol/l). Muscle function of the leg was completely restored by this pointBack to article page