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Peak PA signal, average background noise and signal-to-noise ratio (SNR) values for blood vessel target located ~5 mm below the skin surface of right-hand wrist of a healthy 25-year-old male human volunteer imaged with LED array and laser illumination at 10 Hz frame rate.
| Configuration | Target: Blood Vessel ~5 mm below Skin Surface of Human Wrist | ||
|---|---|---|---|
| Signal (a.u.) | Noise (a.u.) | SNR (dB) | |
| Laser 10 Hz | 3.7E13 | 5.7E11 | 36.37 |
| LED 10 Hz | 5.3E10 | 4.0E08 | 42.49 |
