Fig. 4From: Molecular imaging of HER2 expression in breast cancer patients using a novel peptide-based tracer 99mTc-HP-Ark2: a pilot studyCorrelation between tumor uptake and HER2 expression. A Representative flow cytometry histograms of different tumor cell lines. B NanoScan SPECT/CT images of 99mTc-HP-Ark2 in different tumor models. C Correlation between tumor uptake and HER2 expression (MFI). MFI = mean fluorescence intensityBack to article page