. Author manuscript; available in PMC: 2010 Jun 22.

Published in final edited form as: Phys Med Biol. 2010 Apr 14;55(9):2523–2539. doi: 10.1088/0031-9155/55/9/007

Table 2.

%Bias, %STD and %RMSE in VOI counts for the simulation of uniform activity spheres with SPECT-CT misregistration of 5 mm.

Sphere (mL)	OSEM			PL-CT			PL-Q			PL-EP
Sphere (mL)	Bias	STD	RMSE	Bias	STD	RMSE	Bias	STD	RMSE	Bias	STD	RMSE
95	8	0.3	24	8	0.3	19	21	0.2	26	12	0.3	23
61	10	0.2	26	9	0.2	21	24	0.1	28	14	0.2	26
17	17	0.9	33	17	0.8	26	39	0.6	37	24	0.8	34
11	18	0.9	34	18	0.8	27	42	0.5	39	26	0.9	35
8	21	1.3	34	23	1.2	29	47	0.8	41	31	1.2	35
4	32	2.2	38	35	2.1	36	56	1.4	49	44	2.4	42