Fig. 4

Fractional activity in kidneys as a function of time post-injection. The red circles, corresponding to data obtained from SPECT represent the clinical imaging time which is spread over time based on clinical logistics. The blue circles correspond to data obtained from planar imaging. The green solid line is the curve obtained from a fit to biological kinetics of DMSA (i.e. decay-corrected to the time of injection); the dotted orange curve corresponds to the actual imaging measurements obtained and reflect both the biological kinetics and physical decay of ^99mTc