Table 3. Dynamic characteristics of the blood flow in 7 subjects.

Subject	Vmax (mm/s)	Vmin (mm/s)	Vm (mm/s)	Pulsatility index (PI)	Acceleration time index (Tr)	Rising rate (Rr)	Erythrocytes per cycle
1	2.44 ± 1.20	1.17 ± 0.58	1.75 ± 0.86	0.73 ± 0.08	0.13 ± 0.03	0.50 ± 0.08	57.5 ± 26.3
2	1.85 ± 0.46	0.82 ± 0.20	1.28 ± 0.30	0.80 ± 0.06	0.17 ± 0.04	0.45 ± 0.08	83.6 ± 22.2
3	2.41 ± 0.79	1.02 ± 0.38	1.60 ± 0.56	0.88 ± 0.11	0.15 ± 0.03	0.49 ± 0.07	66.3 ± 15.1
4	2.14 ± 0.64	1.09 ± 0.34	1.51 ± 0.44	0.70 ± 0.08	0.20 ± 0.06	0.54 ± 0.09	60.8 ± 20.2
5	2.55 ± 1.04	0.92 ± 0.33	1.65 ± 0.65	0.95 ± 0.19	0.15 ± 0.04	0.47 ± 0.05	38.5 ± 16.2
6	2.54 ± 0.65	0.88 ± 0.34	1.52 ± 0.42	1.11 ± 0.23	0.21 ± 0.04	0.60 ± 0.06	75.5 ± 19.4
7	1.77 ± 0.53	0.69 ± 0.22	1.10 ± 0.33	0.99 ± 0.20	0.20 ± 0.04	0.60 ± 0.05	76.6 ± 22.2
Mean	2.24	0.94	1.49	0.88	0.17	0.52	65.5
SD	0.30	0.15	0.21	0.14	0.03	0.06	14.0
COV	0.13	0.16	0.14	0.15	0.16	0.11	0.21

SD: standard deviation.

COV: Coefficient of variation.