Fig. 2

An example of the clearance of the low uptake compartment illustrated as a time-activity concentration curve (t _{½ 1stphase} 2.4 h, t _{½ 2ndphase} 61 h for all patients) (a), and the clearance of the high uptake compartment illustrated as a time-activity curve (t _{½ 2ndphase} 69 h for all patients) (b)