. Author manuscript; available in PMC: 2018 Jul 7.

Published in final edited form as: Phys Med Biol. 2017 May 15;62(13):5344–5364. doi: 10.1088/1361-6560/aa731f

Table 6.

Summary of regional K₁ and V_T values from [¹¹C]UCB-J dataset in the frontal lobe at iteration 2 for each count level. Mean and median are computed within region from the mean image across replicates.

		[¹¹C]UCB-J K₁			[¹¹C]UCB-J V_T

		Mean	Median	%CoV	Mean	Median	%CoV
100% Counts	Indirect	0.43	0.43	–	25.4	25.0	–
	Direct	0.43	0.43	–	25.0	24.7	–

20% Counts	Indirect	0.43	0.44	11	30.5	25.8	17
	Direct	0.43	0.43	7	25.9	25.2	12

10% Counts	Indirect	0.44	0.44	16	54.3	26.6	27
	Direct	0.43	0.43	10	26.7	25.3	17

5% Counts	Indirect	0.45	0.45	23	120	28.4	44
	Direct	0.43	0.43	15	30.6	25.8	23