Table 3.

Peak velocity measurements in normal embryos.

Animal	Stage	Location	Peak velocity (cm/s)	Technique	References
Chick	HH25	Atrioventricular canal	17.1	Ultrasound	Butcher et al., 2007a
Chick	HH21	Inflow tract	5.0	Ultrasound	Oosterbaan et al., 2009
		Outflow tract	6.1
Mouse	day 14.5	Mitral	34.4	Ultrasound	Zhou et al., 2003
		Tricuspid	33.4
Chick	HH18	Outflow tract	7.8	Doppler-OCT	Rugonyi et al., 2008
Mouse	day 9.5	Dorsal aorta	0.8	Doppler-OCT	Larina et al., 2008
Quail	HH14	Inflow tract	2.62	Doppler-OCT	Jenkins et al., 2010
		Outflow tract	5.1
Chick	HH17	Vitelline	0.32	Doppler-OCT	Davis et al., 2009
Chick	HH15	Ventricle	2.6	PIV	Vennemann et al., 2006
Chick	HH18	Vitelline	0.08	PIV	Poelma et al., 2008
Chick	HH18	Vitelline	0.1	OCT-PIV	Chen et al., 2012