Fig. 2.

The K-S test statistic for feature value distributions compared pre- and postharmonization, for ($x$ axis) lesions imaged in the United States and ($y$ axis) lesions imaged in China [(a) benign lesions and (b) cancers]. Data points below the diagonal indicate that there is a larger difference between the feature value distributions compared pre- and postharmonization in lesions imaged in the United States, and data points above the diagonal indicate that there is a larger difference between the feature value distributions compared pre- and postharmonization in lesions imaged in China. Feature abbreviations are the same as in Table 2.