Table 2. Optical properties of breast tissues for 3D Monte Carlo simulation.

Tissue	µa (mm-1)	µa (mm-1)	µs (mm-1)	µs (mm-1)	g	Refractive
type	700 nm	900 nm	700 nm	900 nm		index, n
Fat	0.062	0.067	7.30	6.80	0.98	1.3
Artery	0.330	0.795	7.14	5.56	0.90	1.3
Skin	0.048	0.033	16.70	21.27	0.90	1.3
Muscle	0.052	0.054	7.36	6.67	0.93	1.3
Glands	0.036	0.057	11.20	7.90	0.96	1.3
Fiber	0.013	0.016	11.50	16.18	0.90	1.3
Cancer	0.033	0.035	8.70	15.10	0.90	1.3
Vein	0.500	0.655	7.14	5.56	0.90	1.3