Table 1.
Optical properties at 635 nm for the seven brain tissues considered in the study (issued from references [30,31,32,33,34]). The refractive index (RI) was the same for all subtypes of cerebral tissue (RI = 1.40).
| Variable | Healthy Parenchyma | Tumor | |||||
|---|---|---|---|---|---|---|---|
| CSF | Gray Matter | White Matter | Necrotic | Non-Enhancing | Enhancing | Oedema | |
| Absorption coefficient (/mm) | 0.004 | 0.13 | 0.08 | 0.17 | 0.08 | 0.17 | 0.08 |
| Scattering coefficient (/mm) | 0.009 | 9 | 40.5 | 24.1 | 69.7 | 24.1 | 40.5 |
| Anisotropy factor | 0.89 | 0.92 | 0.85 | 0.9 | 0.9 | 0.9 | 0.85 |