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Analysis of the sensitivity of the summary parameters (α, μ, σ) to noise in the OCT A-scan. Random Gaussian noise (standard deviations of 0.1, 0.15 and 0.2) was added to simulated A-scans and the relative repeatability of OCT attenuation coefficient (α) as well as the mean (u) and standard deviation (σ) of the lognormal fit to the histogram of the OCT A-scan were determined.
