Figure 6.

In (A), the minimum of $D_i^{P/U}$ over i = 6 locations for each study participant is shown. For all study participants, $\underset{i}{\mathit{\text{MIN}}}(D_i^{P/U})$ was negative indicating that the skin mark from mammography was posterior to breast CT in at least one location. In (B), the histograms of $\underset{i}{\mathit{\text{MIN}}}(D_i^{P/U})$ are shown. At the 0.05 level, paired t-test indicated that the means of $\underset{i}{\mathit{\text{MIN}}}(D_i^P)$ and $\underset{i}{\mathit{\text{MIN}}}(D_i^U)$ were not statistically different. In (C) and (D), the histograms, expressed in percentage of study participants, of the location IDs corresponding to $\underset{i}{\mathit{\text{MIN}}}(D_i^P)$ and $\underset{i}{\mathit{\text{MIN}}}(D_i^U)$ are shown.