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. 2017 Jan 9;12(1):e0169385. doi: 10.1371/journal.pone.0169385

Table 2. Optimum number of averaged frames for each quantitative metric.

Superior Superotemporal Temporal Inferotemporal Inferior
SNR 6 9 5 8 5
Number of Endpoints 4 4 6 5 4
Mean Segment Length 7 6 5 5 5
Capillary Density 2 2 3 2 2
ICD 1 1 1 1 1

SNR, signal-to-noise ratio; ICD, intercapillary distance.