Table 1. Basic morphometric and echocardiography data of different species.

	n	Body weight(kg)	RR interval(ms)	ET(ms)	LV D/L ratio	EDV(mL)	ESV(mL)	EF	LV mass(g)
Mouse	18	0.033±0.006	92.5±11.1	39±6	0.49±0.08	0.032±0.017	0.009±0.004	0.68±0.06	0.068±0.02
Rat	15	0.264±0.025	143.2±17.1	63±8	0.52±0.10	0.255±0.09	0.076±0.028	0.69±0.07	0.728±0.176
Rabbit	6	3.01±0.39	296.8±36.1	125±17	0.66±0.11	2.9±0.8	1.1±0.5	0.61±0.08	3.6±0.5
Dog	12	26.3±5.9	501.3±38.8	157±12	0.65±0.10	57.4±5.9	22±6.9	0.62±0.06	86.1±19
Human	20	61.7±9.8	891.1±116.1	297±28	0.55±0.05	83.5±13	32.9±8.5	0.61±0.07	100.3±23.6

Abbreviations: ET: ejection time; D/L ratio: diameter/length ratio (diastole); EDV: end diastolic volume; ESV: end systolic volume; EF: ejection fraction; LV: left ventricular.