Figure 3.
Median initial enhancement ratio (IER; % enhancement over baseline on first post-contrast images) of breast lesions by tumor grade. There was a moderate but significant tendency of IER to increase as tumor grade increased (R1: r=0.56, p<0.001, R2: r=0.50, p<0.001). DCIS = ductal carcinoma in situ. IC = invasive carcinoma.