Schematic diagram showing μ-MLDV and test samples used: (a) optical components, (b) scanning direction in linear measurement region, (c) blood vessel pattern, (d) schematic of cross-section.
Flowchart of software used to determine flow velocity. Time series data for 1 s are partitioned into sections containing 244 data points. Flow velocities are calculated for each section, but sections that do not satisfy the three validation criteria are omitted. The output flow velocity is the average value for all sections that satisfy the three validation criteria.
Time courses of lesion development over 16 days after transplantation: (a) before transplantation; (b) lesion was not identified two days after transplantation; (c) lesion area is 0.57 mm2 at five days; (d) 2.2 mm2 at nine days; (e) 6.6 mm2 at 12 days, and (f) 18 mm2 at 16 days.
Blood flow velocity images corresponding to photographs in Fig. 3: (a) before transplantation and (b) two, (c) five, (d) nine, (e) 12, and (f) 16 days after transplantation. Flow velocities are expressed by 30-level color scale. Measurement was performed when heart rate was 240–250 beats/s.
Variation in maximum flow velocity as a function of elapsed time after transplantation. The maximum flow velocities were measured at the points indicated by the asterisks in the blood flow velocity images of Figs. 4(a)–4(f).
Blood flow images obtained by laser speckle system: (a) before transplantation and (b) 12 days after transplantation. Flow velocities are expressed by 16-level color scale. Measurements were performed when the heart rate was 240–250 beats/s.
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