Table 2.

Abdominal fat measurement errors.

Method	$D_s$ (${\mathrm{cm}}^3$)	$D_v$ (${\mathrm{cm}}^3$)	${\rho }_s$	${\rho }_v$	${\rho }_r$	$R_s^2$	$R_v^2$	$R_r^2$
ASM	$28.02\pm 35.91$	$36.52\pm 31.60$	0.92	0.80	0.69	0.85	0.64	0.47
AASM	$16.72\pm 37.59$	$15.38\pm 17.35$	0.94	0.96	0.87	0.88	0.93	0.76

Note that $D$ indicates the absolute difference between the area derived from the manual label and the estimated segmentation, $\rho$ represents the Pearson’s correlation coefficient, and $R^2$ is the R-square value of a linear regression. The subscripts $s,v$, and $r$ represent subcutaneous fat, visceral fat, and the ratio of visceral fat to subcutaneous fat, respectively.