Fig. 2

Results of lesion dosimetry based on two-time point SPECT at 24 and 168 h compared to the reference standard. A concordance between the absorbed dose according to the simplified protocol (y-axis) and the reference standard (x-axis). The diagonal line is the line of perfect concordance. B Bland–Altman plot showing the mean difference between both methods as a function of the mean absorbed dose of both methods. The upper and lower dashed lines indicate the limits of agreement