Research Article

Whole Volume Apparent Diffusion Coefficient (ADC) Histogram as a Quantitative Imaging Biomarker to Differentiate Breast Lesions: Correlation with the Ki-67 Proliferation Index

Figure 5

Spearman’s rank correlation maps between the parameters of ADC histogram and the Ki-67. The correlation coefficient is indicated with color maps ranging from purple to yellow; purple and yellow indicate the negative and positive strongest correlations, respectively. It shows a weak correlation between ADC entropy and Ki-67.