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. Author manuscript; available in PMC: 2017 Mar 3.
Published in final edited form as: J Nucl Med. 2016 Sep 22;58(3):484–491. doi: 10.2967/jnumed.115.170910

Figure 4.

Figure 4

Results from reference region based analyses with cerebellar input functions. (A) Demonstration of Logan plot linearization in MCI subject S9 for estimation of distribution volume ratio (DVR). Large circles depict the 55 minute t* point. Note that the axes were scaled down to enhance the visualization of the higher uptake regions. Comparison of Logan DVR (B) and SUVR80-100 (C) against indirect calculations of DVR given VT/VTREF with distribution volumes estimated by compartmental modeling with arterial input functions and VTREF corresponding to the cerebellum.