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T1w images of elderly subject with sarcopenia (top) and of young healthy subject (bottom). A: T1 weighted sequence, B: Dixon fat fraction sequence and C: Dixon water fraction sequence. The T1w image in A is affected by bias (upper left corner of the image in the upper row), Dixon fat and water images are also affected but this effect cancels out the PDFF and PDFW images (upper row B and C).
