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. Author manuscript; available in PMC: 2010 Jan 21.
Published in final edited form as: IEEE Trans Nucl Sci. 2000 Jun;47(3):nihpa165910. doi: 10.1109/23.856535

Figure 2.

Figure 2

Simulated time-activity curves. The dip seen in the transition period for the 6 minute curves arises because washin and washout are changing at different rates. That is, the distribution volume (k21/k12) is decreasing (see Table 1).