Doppler waveform patterns and reference ranges of fetal renal artery blood flow indices in normal Thai fetuses during the second trimester

Figures & Tables

GA	No.	PSV			EDV after omission of fetuses with AEDV			S/D			PI			RI after omission of fetuses with AEDV

(weeks)		Mean	Percentile		Mean	Percentile		Mean	Percentile		Mean	Percentile		Mean	Percentile

			5th	95th		5th	95th		5th	95th		5th	95th		5th	95th
14	34	17.78	10.36	30.52	2.99	0.89	10.06	5.38	2.54	20.98	1.92	1.20	3.06	0.815	0.622	0.940
15	29	18.85	10.98	32.35	3.04	0.9	10.20	5.59	2.59	22.43	1.95	1.22	3.10	0.823	0.634	0.945
16	31	19.98	11.64	34.29	3.08	0.92	10.34	5.80	2.64	24.02	1.97	1.24	3.15	0.831	0.645	0.949
17	48	21.18	12.34	36.35	3.12	0.93	10.49	6.03	2.7	25.76	2.00	1.26	3.20	0.839	0.657	0.953
18	30	22.45	13.08	38.53	3.17	0.94	10.63	6.27	2.76	27.66	2.03	1.27	3.25	0.847	0.668	0.957
19	32	23.80	13.87	40.84	3.21	0.96	10.78	6.53	2.82	29.76	2.06	1.30	3.29	0.854	0.679	0.961
20	43	25.23	14.70	43.29	3.25	0.97	10.93	6.81	2.89	32.06	2.09	1.31	3.34	0.862	0.690	0.965
21	41	26.74	15.58	45.89	3.30	0.98	11.09	7.10	2.96	34.60	2.13	1.33	3.39	0.869	0.700	0.968
22	37	28.34	16.52	48.64	3.35	1.00	11.24	7.41	3.03	37.40	2.16	1.35	3.44	0.876	0.711	0.971
23	36	30.05	17.51	51.56	3.39	1.01	11.40	7.74	3.10	40.49	2.19	1.37	3.49	0.883	0.722	0.975
24	37	31.85	18.56	54.66	3.44	1.02	11.56	8.10	3.18	43.92	2.22	1.39	3.55	0.889	0.732	0.978
25	26	33.76	19.67	57.94	3.49	1.04	11.72	8.48	3.26	47.73	2.26	1.41	3.60	0.896	0.742	0.981
26	32	35.78	20.85	61.41	3.54	1.05	11.88	8.89	3.35	51.96	2.29	1.44	3.65	0.901	0.752	0.983
27	26	37.93	22.10	65.10	3.59	1.07	12.05	9.33	3.44	56.67	2.32	1.46	3.71	0.908	0.761	0.986
28	30	40.21	23.43	69.00	3.64	1.08	12.22	9.79	3.53	61.92	2.36	1.48	3.76	0.914	0.770	0.988