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Scatter plots comparing (A) pulmonary blood flow measured by oximetry vs. CMR and (B) error in pulmonary blood flow as measured by oximetry vs. CMR collateral flow. Reduced major axis best-fit lines and lines of identity are overlaid. Qp indicates pulmonary blood flow; PV, pulmonary vein; ρc, concordance correlation coefficient; r, Pearson’s linear correlation.
