In LSFG, blood flow values are quantified as "MBR," and these values are represented in pseudo-color (*) to create blood flow maps.
When shipping LSFG-NAVI units, we perform characteristic evaluation using our in-house calibration equipment and characteristic evaluation by actually measuring human eyes, adjusting the characteristics to meet the following standards:
- Black when scattering particles on the observation surface are stationary
- Red on the central retinal artery and vein of the fundus
- Varies linearly with the movement speed of scattering particles between these two extremes
*Definition of pseudo-color
The LSFG blood flow map displays pseudo-colors in the following order from highest to lowest blood flow value: "Red → Yellow → Yellow-green → Cyan → Blue → Black."
Fundus blood flow map sample (the color bar displayed on the right edge defines the pseudo-colors)