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Results of sLTP reproducibility measures. (a) Reproducibility measures Rla versus ROI sampling parameter β2; (b) Reproducibility of sLTPs labeling across scanners (from EMCAP and MESA COPD studies) measured with Cohen’s Kappa coefficients of sLTPk presence and Spearman correlation coefficients of %sLTPk values (white=without and black = with intensity histogram mapping).
