Fig. 4From: Comparison of standardized uptake values between 99mTc-HDP SPECT/CT and 18F-NaF PET/CT in bone metastases of breast and prostate cancerScatter plots of a SUVRmax, b SUVRpeak, and c SUVRmean from SPECT and PET data for all lesions. Metastatic lesions are marked in red and benign in black. Regression lines with slopes, y-intercepts, and coefficients of determination (R2) have been calculated using the method of least squaresBack to article page