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Histogram parameters in correlation with 20%-cutoff lung fibrosis as a prognostic factor in SSc patients. (A) Kurtosis and skewness of standard HRCT compared to the extend of 20% fibrosis [group 1: ≤20% fibrosis (n=31), group 2: >20% fibrosis (n=29)]; (B) Kurtosis and skewness of reduced HRCT compared to the extent of 20% fibrosis [group 1: ≤20% fibrosis (n=31), group 2: >20% fibrosis (n=29)]. HRCT, high-resolution computed tomography.
