Fig. 1
From: Blood flow characteristics of diabetic patients with complications detected by optical measurement
The ICG imaging system. a Indocyanine green (ICG) imaging scheme. ICG is bolus-injected intravenously, and near-infrared (NIR) imaging acquisition begins simultaneously. The fluorescence images were analyzed using the respective vascular tracer parameter calculation algorithms. b Calculation algorithms for the vascular tracer parameters: Imax, difference between the maximum and minimum fluorescence intensities; Trising, time from onset to Imax; BFI, the Imax to Trising ratio. MTT (mean transit time) is calculated as shown