. Author manuscript; available in PMC: 2012 Mar 1.

Published in final edited form as: Magn Reson Med. 2010 Nov 16;65(3):837–847. doi: 10.1002/mrm.22657

Table 1.

Iron Morphology description

Characterization	Equation	m [units]	c [units]	RMSE	R
Volume fraction	VF = m*HIC+c	0.00127 [(mg/g)⁻¹]	0.00368 [%]	0.00716	0.93
Size distribution	β = m*HIC +c	0.000296 [μm.(mg/g)⁻¹]	0.0935 [μm]	0.0245	0.17
	γ = m* β +c	2.188 [μm⁻¹]	2.695 [ ]	0.0126	0.97
Nearest neighbor	γ = exp (mlog(HIC*)+c)	0.476 [(mg/g)⁻¹]	−0.131 [ ]	1.221	0.78
	β = exp (m*log(γ)+c)	−1.403 [μm]	0.740 [μm]	0.357	0.98
Cellular anisotropy	γ = m*HIC+c	0.0179 [(mg/g)⁻¹]	1.025 [ ]	0.412	0.53
	β = exp (mlog(HIC*)+c)	0.375 [(mg/g)⁻¹]	−3.366 [ ]	0.0296	0.76

RMSE: Root Mean Square Error, R: Correlation coefficient, VF: Volume Fraction of spheres (%), HIC: Hepatic Iron Concentration (mg/g dry tissue weight), [ ]: Dimensionless