Fig. 5From: Dual-energy CT quantitative parameters for evaluating Immunohistochemical biomarkers of invasive breast cancerSubdivision of groups by the expression status of immunohistochemical biomarkers. a–c Box plots show normalized iodine concentration (a), normalized effective atomic number (b), and the slope of the spectral Hounsfield unit curve (c), as observed on DECT images. Horizontal lines within boxes denote median values, and vertical lines denote minimum and maximum values. ER = estrogen receptor, PR = progesterone receptor, HER2 = human epidermal growth factor receptor 2Back to article page