Table 4.

Percentage biases of activity estimates from experimental data.

Isotope	Method	Left caudate	Left putamen	Right caudate	Right putamen	Background
123I	None	17.42	25.24	8.70	8.17	12.16
	Singlea	0.21	−4.41	6.97	0.30	−1.56
	altMBCC	0.09	2.50	6.58	0.50	−1.11
	simMBCC	0.11	2.43	6.51	0.47	−1.13
99mTc	None	21.61	19.40	157.04	37.89	50.49
	Single	−0.12	−0.15	−0.14	−0.69	−0.15
	altMBCC	0.81	2.38	5.94	1.03	0.55
	simMBCC	0.79	2.29	5.91	0.89	0.32

^aThe single isotope image of ¹²³I was reconstructed with compensation for downscatter contamination.