Review Article
A Review of Indocyanine Green Fluorescent Imaging in Surgery
Table 9
An example of the light attenuation in an ICG imaging system.
| Row | Component | Attenuation | Remaining intensity |
| 1 | LED 780-66-60 | 0.2 | = 1 W/sr | 2 | Fs, ET775_50x | 0.8 | = 0.8 W/sr | 3 | Tissue irradiance | | = 80 W/m2 | 4 | Tissue, 1 mm | 0.45 | = 36 W/m2 | 5 | Fluorescence | 0.0027 | = 0.10 W/m2 | 6 | Tissue, 1 mm | 0.45 | 45 mW/m2 | 7 | Lambertian S. | 0.32 | = 14 mW/sr | 8 | Fc, ET845_55 m | 0.3 | = 4.3 mW/sr | 9 | Irradiance, f/1.1 | 0.82 | = 3.5 mW/m2 |
| Response of the Hamamatsu ER-150 low light |
| 10 | Power per pixel | | = 0.15 pW | 11 | Photons per pixel | | = photons/s | 12 | Detected photons | 0.25 | = electrons/s | 13 | Optimal exposure | | | 14 | Signal to noise | | SNR = 63 dB |
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