Figure 5.

Comparison of individual curve type volume percentages measured at 4.5 versus 7.5 minutes post-contrast for benign (a–c) and malignant (d–f) lesions. Bland–Altman plots show the difference versus the mean for percentages of persistent enhancement (a, d), plateau enhancement (b, e), and washout (c, f). Dashed lines indicate 95% confidence intervals; solid line indicates mean difference. Plots represent differences between time points in percentages (a) persistent, (b) plateau, and (c) washout enhancement for benign lesions, and percentages (d) persistent, (e) plateau, and (f) washout enhancement for malignancies. A malignant outlier case (arrows; d, f) was a DCIS lesion that demonstrated a dramatic shift from predominantly persistent enhancement at 4.5 minutes to predominantly washout at 7.5 minutes, which is further illustrated in Figure 6.