TABLE 4.
Absolute cerebral absorption and reduced scattering coefficients measured with non-invasive FD-NIRS in vivo.
| References | Instr. | f (MHz) | Method | λ (nm) | μa (cm–1) | μs’ (cm–1) | Age | Brain investigated |
| Fantini et al., 1999 | ISS | 110 | MD: 1.5–3 cm | 758 | 0.15 | 9.3 | 11 ± 1 days | Piglets |
| 830 | 0.13 | 8.2 | ||||||
| Zhang et al., 2000 | ISS | 110 | MD: 1.5–3 cm | 758 | – | 7.8 | 9 ± 2 days | Piglets |
| 830 | – | 6.6 | ||||||
| Zhao et al., 2005 | Own | 140 | SD(calib): 4 cm | 788 | 0.078 | 9.2 | 1–17 days | Neonates/infants/children |
| 832 | 0.089 | 8.4 | ||||||
| Demel et al., 2014a | ISS | 110 | MD: 1.5–3 cm | 692 | 0.07–0.11 | 5.9–9.4 | 1–71 days | Neonates/infants/children |
| 834 | 0.08–0.12 | 4.5–7.2 | ||||||
| Farzam et al., 2017 | ISS | 110 | MD: 1.5–3 cm | 672 | 0.160 | 8.7 | 2 ± 1 days | Neonates/infants/children |
| 689 | 0.127 | 8.5 | ||||||
| 701 | 0.115 | 8.5 | ||||||
| 724 | 0.110 | 8.2 | ||||||
| 771 | 0.140 | 7.5 | ||||||
| 783 | 0.126 | 7.2 | ||||||
| 803 | 0.121 | 6.8 | ||||||
| 829 | 0.141 | 6.5 | ||||||
| Tian et al., 2017 | ISS | 110 | MD | 785, 811 | 0.15–0.30 | 6–18 | 0–16 years (ECMO) | Neonates/infants/children |
| Hallacoglu et al., 2012 | ISS | 110 | MD: 2.8–3.8 cm | 690 | 0.14 | 7.2 | 28 ± 4 years | Adults (homogeneous tissue) |
| 830 | 0.12 | 6.0 | ||||||
| 690 | 0.10 | 5.3 | 85 ± 6 years | |||||
| 830 | 0.08 | 4.8 | ||||||
| Hallacoglu et al., 2013 | ISS | 110 | MD: 1.3–4.8 cm | 690 | 0.08 | 13 | 29 ± 2 years | Adults (superficial tissue, ∼13 mm) |
| 830 | 0.08 | 11 | ||||||
| 690 | 0.20 | 3 | Adults (deep tissue, brain) | |||||
| 830 | 0.20 | 2 | ||||||
| 690 | 0.11 | 7 | Adults (homogeneous tissue) | |||||
| 830 | 0.12 | 5 | ||||||
| Blaney et al., 2019 | ISS | 140 | MD: 1.1–4 cm | 690 | 0.10 | 9.8 | 25–53 years | Adults (homogeneous tissue) |
| 830 | 0.11 | 8.0 |
Instr., Instrument; ISS, ISS, Inc. (Champaign, IL, United States); MD, multi distance; SD, single distance; ECMO, Extracorporeal Membrane Oxygenation.