Figure 1: Correlation of the tumor to non-tumor 18F-FDG and 99mTc-HL91 radioactivity ratio (T/N) in forty breast cancer patients before neoadjuvant chemotherapy. Each data point represents the T/N change of 18F-FDG (VAR00001) and 99mTc-HL91 (VAR00003) radioactivity in an individual tumor. Spearman rank correlation analysis detected a linear correlation between the T/N of 99mTc-HL91 and the T/N of 18F-FDG (r = 0.778, p<0.0001)