Table 5.

Functional properties of breast tissues and lesion.

Medium	$s$ (%)	$f_b$ (%)	$f_w$ (%)	$f_f$ (%)	$f_m$ [%]
Fat/ligament/TDLU/duct51	PDEa	$\mathrm{TN}(1.15,0.22,0.91,1.43)$	$\mathrm{TN}(29.17,13.11,\mathrm{14,}40)$	$100-(f_{b,\mathrm{fat}}+f_{w,\mathrm{fat}})$	0
Glandular51	PDEa	$f_{b,\text{fat}}$	$f_{w,\text{fat}}$	0	0
Skin52	98.9	0.39	$\mathrm{TN}(18.68,1.34,\mathrm{12,}25)$	$\mathrm{TN}(30.72,3.79,\mathrm{12,}48)$	$\mathrm{TN}(0.64,0.04,0.44,0.84)$
Nipple53	71.28	1.35	$\mathrm{TN}(45.4,11.7,25.1,76.6)$	$100-(f_{b,\text{nipple}}+f_{w,\text{nipple}}+f_{m,\text{nipple}})$	$\mathrm{TN}(0.82,0.09,0.4,1.24)$ 52
Artery	$U(\mathrm{95,99})$ 36	100	0	0	0
Vein	$U(\mathrm{75,84})$ 36	$f_{b,\text{artery}}$	0	0	0
VTC54	$TN(69.91,4.99,62.5,76.49)$	$\mathrm{TN}(1.64,0.6,0.89,2.93)$	$\mathrm{TN}(47.67,20.15,24.14,82.25)$	$100-(f_{b,\mathrm{VTC}}+f_{w,\mathrm{VTC}})$	0
Necrotic core54	$s_{\mathrm{VTC}}$	0	$f_{w,\mathrm{VTC}}$	$f_{f,\mathrm{VTC}}$	0
PA54	PDEa	PDEa	$f_{w,\mathrm{VTC}}$	$f_{f,\mathrm{VTC}}$	0

^aThe PDE formulation creates a smooth transition for the tissue property distribution.