HER2	Human epidermal growth factor receptor 2
MRI	Magnetic resonance imaging
CT	Computed tomography
ROI	Regions of interest
PEI	Peak enhancement intensity
HU	Hounsfield units
TTP	Time to peak
SSF	Spatial scale filter
ER	Estrogen receptor
PR	Progesterone receptor
ANN	Artificial neural network
AUC	Area under the receiver-operating characteristic curve