Figure 6.

The linear correlations (above) and Bland-Altman analyses (bottom) to compare the area at risk by red iodized oil-staining and digital radiography of the bifunctional staining. The plots showed a good correlation between the area at risk (AAR) measured with red iodized oil (RIO)-staining and digital radiography (DR) on global (A) and slices (B). Plots of the differences in AAR on global (C) and slices (D) were almost zero, indicating that RIO-staining and DR are essentially equivalent.