A quantitative comparison of regional myocardial motion in mice, rabbits and humans using in-vivo phase contrast CMR

Table 3 Global peak velocities in murine, rabbit and human hearts (v_r: radial, v_φ: rotational, v_z: long-axis)

Velocity	Slice	Peak Systolic velocity [cm/s]			Peak Diastolic velocity [cm/s]
		Mice	Rabbits	Humans	Mice	Rabbits	Humans
v _r	basal	0.9 ± 0.2	2.1 ± 0.2	2.9 ± 0.7	−1.4 ± 0.3	−4.3 ± 0.4	−5.2 ± 1.4
	mid	0.9 ± 0.2	2.0 ± 0.4	2.7 ± 0.7	−1.6 ± 0.5	−4.5 ± 0.8	−5.3 ± 1.5
	apical	0.9 ± 0.2	1.4 ± 0.2	2.3 ± 0.7	−1.8 ± 0.4	−3.3 ± 0.7	−4.4 ± 1.8
v _z	basal	1.4 ± 0.4	4.3 ± 0.9	7.4 ± 1.5	−2.7 ± 0.4	−8.0 ± 1.0	−12.7 ± 2.9
	mid	1.2 ± 0.3	3.2 ± 0.7	5.8 ± 1.5	−2.3 ± 0.6	−4.9 ± 1.3	−8.7 ± 2.7
	apical	0.9 ± 0.3	1.6 ± 0.5	4.0 ± 1.4	−1.1 ± 0.6	−1.3 ± 0.5	−4.3 ± 1.7
		Peak early-systole			Peak mid-systole
v _φ	basal	0.8 ± 0.4	−1.3 ± 0.5	−3.7 ± 1.8	0.1 ± 0.2	1.6 ± 0.4	2.6 ± 1.1
	mid	0.7 ± 0.3	−1.8 ± 0.5	−3.9 ± 1.7	−0.1 ± 0.1	0.9 ± 0.5	1.5 ± 1.0
	apical	0.7 ± 0.3	−1.5 ± 0.5	−3.3 ± 1.4	−0.3 ± 0.2	0.5 ± 0.6	0.5 ± 0.8

The peak velocities between all species are significantly different (p < 0.005) except for the radial diastolic velocities between rabbits and humans (all slices).