Comparison of Two Commercially Available Immunoassays for the Measurement of Bovine Cardiac Troponin I in Cattle With Induced Myocardial Injury

Figures

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  Figure 1. Linear regression of cTnI concentrations as determined by i-STAT and Centaur analyzers. Circles indicate concentrations as determined by i-STAT (Y axis) and Centaur (X axis). The solid line represents regression line with dotted lines recommending 95% confidence intervals for the regression line. The dashed line represents a line of identity.

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  Figure 2. Bland-Altman plots demonstrating measurement difference as a function of measurement for low and high serum cTnI concentrations. (A) cTnI < 1.0 ng/mL (n = 47). (B) Average cTnI ≥ 1.0 ng/mL (n = 18). The horizontal solid line in the center of each graph represent the mean difference (bias) between the methods and the dotted lines represent the limits of agreement between the two methods of measurement.