Table 1.

Largest mean uncorrected velocity offset (cm/s) in regions centred within 50 mm of isocentre for the aortic plane, and within 70 mm for the MPA plane (head-foot or left-right phase-encoding).

cm/s	Scanner Site	Aorta	MPA (HF phase-enc)	MPA (LR phase-enc)
Scanner type 1	1	-2.2 cm/s	-3.8 cm/s	-5.6 cm/s
	2	-2.8	-3.1	-5.5
	3	-0.7	-3.2	-5.3
	4	-1.3	-3.5	-4.7
Scanner type 2	5	-2.2	-3.4	-5.4
	6	-1.1	-3.9	-3.1
	7	1.6	-4.0	-3.6
	8	-2.7	-4.9	-4.9
Scanner type 3	9	1.6	1.2	1.8
	10	1.2	-0.7	0.4
	11	0.9	1.6	2.1
	12	1.1	-1.7	2.0
Mean of all 12 absolute values		1.6 cm/s	2.9 cm/s	3.7 cm/s
Range of all 12 absolute values		0.7 to 2.8 cm/s	0.7 to 4.9 cm/s	0.4 to 5.6 cm/s

The twelve rows are from the four sites using each scanner type. The scanner types are not identified.