Table 3.

Range of volume over/under-estimation as a function of motion amplitude for the three scan modes.

Target Diameter (mm)	S-I Motion Amplitude ± (mm)	Single-slice Fast				Multi-slice Fast				Single-slice Slow
		Min	Mean	1σ	Max	Min	Mean	1σ	Max	Min	Mean	1σ	Max
	5	0.99	2.52	1.02	3.78	1.66	2.85	0.70	3.74	3.88	4.57	0.62	5.60
	10	2.35	2.68	0.21	2.92	3.07	3.61	0.37	4.2	5.71	6.84	0.99	8.42
10	15	2.27	3.38	1.07	4.98	4.11	4.65	0.39	5.21	10.1	11.1	0.60	11.7
	5	1.22	1.35	0.08	1.44	1.54	1.56	0.03	1.62	1.52	1.60	0.06	1.67
	10	1.39	1.45	0.03	1.50	1.7	1.79	0.05	1.87	1.78	1.89	0.07	1.97
31.5	15	1.50	1.57	0.05	1.64	2.02	2.08	0.05	2.15	2.09	2.26	0.11	2.41

Each target motion in the S-I direction was synchronized with a fixed rotational motion to initiate an R-L and an A-P displacement of ± 2 and ± 5 mm, respectively.