Figure 3.

Scatter plots of pathologically measured RCB and in-breast RCB index values (from post-NACT resection specimens) against post-NACT (V4) MRI metrics: (A) RECIST LD, (B) K^trans(SSM), and (C) τ_i. The straight line in each panel represents a linear regression. The Spearman correlation coefficient R and P values for the three imaging metrics are listed in Table 3B and shown in each panel. Note the inverse relationship between RCB (and in-breast RCB) and τ_i. Imaging results are missing from a pCR patient (patient 20), who declined the V4 MRI study due to personal reasons.