Aorta – Peak Velocity

Rizzo G et.al. Obstet Gynecol 1992;80:369-376

GA (wks)	50^th Percentile	5^th Percentile	95^th Percentile
20	62.2	44.2	80.2
21	63.5	45.5	81.5
22	64.9	46.9	82.9
23	66.2	48.2	84.2
24	67.5	49.5	85.5
25	68.8	50.8	86.8
26	70.1	52.1	88.1
27	71.4	53.4	89.4
28	72.7	54.7	90.7
29	74	56	92
30	75.3	57.3	93.3
31	76.6	58.6	94.6
32	77.9	59.9	95.9
33	79.2	61.2	97.2
34	80.5	62.5	98.5
35	81.8	63.8	99.8
36	83.1	65.1	101.1
37	84.4	66.4	102.4
38	85.7	67.7	103.7
39	87	69	105
40	88.3	70.3	106.3