Fig. 3From: Molecular imaging of HER2 expression in breast cancer patients using a novel peptide-based tracer 99mTc-HP-Ark2: a pilot studyIn vivo behavior of 99mTc-HP-Ark2. A SPECT/CT images of 99mTc-HP-Ark2 in the SK-BR-3 tumor model at 0.5, 1 and 2Â h p.i. B SPECT/CT images of 99mTc-HP-Ark2 (in situ tumor and blocking study) and 99mTc-HP-rk in the SK-BR-3 tumor model at 0.5 p.i. C Biodistribution of 99mTc-HP-Ark2 in the SK-BR-3 tumor model at 0.5, 1 and 2Â h p.i. D Biodistribution of 99mTc-HP-Ark2 with/without a blocking dose of cold rk peptide and 99mTc-HP-rk in the SK-BR-3 tumor model at 0.5Â h p.iBack to article page