Gastric surgery-induced body fat loss automatically reduces fat-free mass (FFM) by changing the fat-free component of adipose tissue. A recent study first reported a change in fat fraction percentage of adipose tissue during gastric bypass surgery-induced weight loss, using chemical shift-based water/fat separation method.
Results and Conclusion:
Our proposed models showed that dual-energy X-ray absorptiometry-derived FFM was affected by changing the fat-free component of adipose tissue during gastric surgery weight loss, the magnitude of which depends on the proportion of fat-free adipose tissue used in the model.
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