Table 1.

Dice coefficients for manual and automatic segmentation at the level of the third lumbar vertebral body

	Mean Dice coefficients ± standard deviation
	Manual vs. manual segmentations (intra-observer)	Manual vs. automatic segmentation
Psoas muscles	0.90 ± 0.03	0.87 ± 0.06
Paraspinal muscles	0.91 ± 0.03	0.90 ± 0.04
Abdominal wall muscles	0.89 ± 0.03	0.87 ± 0.05
Subcutaneous fat	0.86 ± 0.10	0.88 ± 0.09
Visceral fat	0.67 ± 0.09	0.60 ± 0.09