Expert consensus on reference ranges for fetal Doppler indices: umbilical artery, uterine artery, middle cerebral artery, and cerebroplacental ratio

doi:10.3877/cma.j.issn.1672-6448.2026.03.004

Abstract

Group of Prenatal Ultrasound Diagnostics, Birth Defect Prevention and Control, Chinese Preventive Medicine Association, Group of Ultrasound in Obstetrics and Gynecology, Ultrasound Branch of Chinese Medical Association. Expert consensus on reference ranges for fetal Doppler indices: umbilical artery, uterine artery, middle cerebral artery, and cerebroplacental ratio[J]. Chinese Journal of Medical Ultrasound (Electronic Edition), 2026, 23(03): 200-207.

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Figures/Tables 8

References 43

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质控点	质控内容
放大程度	感兴趣区域占屏幕的50%以上，缩放框和取样容积位于血管中心
声束角度	声束与血流方向的夹角＜30°（测量大脑中动脉时应＜15°）
扫描速度	3~6个一致、相似、平稳的波形
图像清晰度	脉冲频率和彩色增益调节适当
取样位置	（1）脐动脉：脐带游离段（单胎）（2）子宫动脉：早孕期为子宫动脉分支分出弓状动脉之前的部位；中晚孕期为子宫动脉与髂外动脉交叉点下游（上方）约1 cm 处（3）大脑中动脉：显示Willis环，取样容积位于MCA起始段1/3处
速度标尺	收缩期峰值流速至少占Y轴的75%

质控点	质控内容
放大程度	感兴趣区域占屏幕的50%以上，缩放框和取样容积位于血管中心
声束角度	声束与血流方向的夹角＜30°（测量大脑中动脉时应＜15°）
扫描速度	3~6个一致、相似、平稳的波形
图像清晰度	脉冲频率和彩色增益调节适当
取样位置	（1）脐动脉：脐带游离段（单胎）（2）子宫动脉：早孕期为子宫动脉分支分出弓状动脉之前的部位；中晚孕期为子宫动脉与髂外动脉交叉点下游（上方）约1 cm 处（3）大脑中动脉：显示Willis环，取样容积位于MCA起始段1/3处
速度标尺	收缩期峰值流速至少占Y轴的75%

孕周	S/D					阻力指数（RI）					搏动指数（PI）
孕周	5^th	10^th	50^th	90^th	95^th	5^th	10^th	50^th	90^th	95^th	5^th	10^th	50^th	90^th	95^th
24	2.46	2.61	3.23	4.12	4.46	0.60	0.62	0.69	0.76	0.78	0.86	0.91	1.10	1.31	1.38
25	2.39	2.53	3.15	4.03	4.38	0.58	0.61	0.68	0.75	0.77	0.84	0.89	1.08	1.30	1.37
26	2.32	2.46	3.07	3.95	4.29	0.57	0.60	0.67	0.75	0.77	0.81	0.87	1.07	1.29	1.35
27	2.26	2.40	3.00	3.86	4.19	0.56	0.59	0.67	0.74	0.76	0.79	0.85	1.05	1.27	1.34
28	2.22	2.35	2.93	3.77	4.09	0.55	0.58	0.66	0.74	0.76	0.78	0.83	1.03	1.25	1.32
29	2.17	2.31	2.87	3.68	3.99	0.55	0.57	0.65	0.73	0.75	0.76	0.81	1.01	1.23	1.30
30	2.14	2.26	2.81	3.58	3.89	0.54	0.56	0.64	0.72	0.75	0.75	0.80	1.00	1.21	1.28
31	2.10	2.22	2.74	3.49	3.78	0.53	0.55	0.63	0.72	0.74	0.73	0.78	0.98	1.19	1.26
32	2.07	2.19	2.68	3.40	3.67	0.52	0.54	0.63	0.71	0.73	0.72	0.77	0.96	1.17	1.24
33	2.04	2.15	2.62	3.30	3.57	0.51	0.53	0.62	0.70	0.72	0.70	0.75	0.94	1.15	1.21
34	2.01	2.11	2.56	3.21	3.46	0.50	0.52	0.61	0.69	0.71	0.69	0.74	0.92	1.13	1.19
35	1.97	2.08	2.50	3.12	3.35	0.49	0.52	0.60	0.68	0.70	0.67	0.72	0.90	1.10	1.16
36	1.94	2.04	2.44	3.02	3.24	0.48	0.51	0.59	0.67	0.69	0.66	0.70	0.88	1.08	1.14
37	1.91	2.00	2.38	2.93	3.14	0.47	0.50	0.58	0.66	0.68	0.64	0.69	0.86	1.05	1.11
38	1.87	1.96	2.32	2.83	3.03	0.46	0.49	0.57	0.65	0.67	0.62	0.67	0.84	1.03	1.08
39	1.84	1.92	2.25	2.73	2.92	0.45	0.48	0.56	0.64	0.66	0.60	0.65	0.82	1.00	1.06
40	1.80	1.87	2.19	2.64	2.81	0.44	0.46	0.55	0.63	0.65	0.59	0.63	0.79	0.97	1.03

孕周	S/D					阻力指数（RI）					搏动指数（PI）
孕周	5^th	10^th	50^th	90^th	95^th	5^th	10^th	50^th	90^th	95^th	5^th	10^th	50^th	90^th	95^th
24	2.46	2.61	3.23	4.12	4.46	0.60	0.62	0.69	0.76	0.78	0.86	0.91	1.10	1.31	1.38
25	2.39	2.53	3.15	4.03	4.38	0.58	0.61	0.68	0.75	0.77	0.84	0.89	1.08	1.30	1.37
26	2.32	2.46	3.07	3.95	4.29	0.57	0.60	0.67	0.75	0.77	0.81	0.87	1.07	1.29	1.35
27	2.26	2.40	3.00	3.86	4.19	0.56	0.59	0.67	0.74	0.76	0.79	0.85	1.05	1.27	1.34
28	2.22	2.35	2.93	3.77	4.09	0.55	0.58	0.66	0.74	0.76	0.78	0.83	1.03	1.25	1.32
29	2.17	2.31	2.87	3.68	3.99	0.55	0.57	0.65	0.73	0.75	0.76	0.81	1.01	1.23	1.30
30	2.14	2.26	2.81	3.58	3.89	0.54	0.56	0.64	0.72	0.75	0.75	0.80	1.00	1.21	1.28
31	2.10	2.22	2.74	3.49	3.78	0.53	0.55	0.63	0.72	0.74	0.73	0.78	0.98	1.19	1.26
32	2.07	2.19	2.68	3.40	3.67	0.52	0.54	0.63	0.71	0.73	0.72	0.77	0.96	1.17	1.24
33	2.04	2.15	2.62	3.30	3.57	0.51	0.53	0.62	0.70	0.72	0.70	0.75	0.94	1.15	1.21
34	2.01	2.11	2.56	3.21	3.46	0.50	0.52	0.61	0.69	0.71	0.69	0.74	0.92	1.13	1.19
35	1.97	2.08	2.50	3.12	3.35	0.49	0.52	0.60	0.68	0.70	0.67	0.72	0.90	1.10	1.16
36	1.94	2.04	2.44	3.02	3.24	0.48	0.51	0.59	0.67	0.69	0.66	0.70	0.88	1.08	1.14
37	1.91	2.00	2.38	2.93	3.14	0.47	0.50	0.58	0.66	0.68	0.64	0.69	0.86	1.05	1.11
38	1.87	1.96	2.32	2.83	3.03	0.46	0.49	0.57	0.65	0.67	0.62	0.67	0.84	1.03	1.08
39	1.84	1.92	2.25	2.73	2.92	0.45	0.48	0.56	0.64	0.66	0.60	0.65	0.82	1.00	1.06
40	1.80	1.87	2.19	2.64	2.81	0.44	0.46	0.55	0.63	0.65	0.59	0.63	0.79	0.97	1.03

孕周	5^th	10^th	50^th	90^th	95^th	正常妊娠中“切迹”出现的比例
11	1.18	1.67	1.79	1.92	2.70	46%
12	1.11	1.57	1.68	1.81	2.53	46%
13	1.05	1.48	1.58	1.70	2.38	46%
14	0.99	1.40	1.49	1.61	2.24	46%
15	0.94	1.32	1.41	1.52	2.11	17%
16	0.89	1.25	1.33	1.44	1.99	17%
17	0.85	1.19	1.27	1.36	1.88	17%
18	0.81	1.13	1.2	1.30	1.79	17%
19	0.78	1.08	1.15	1.24	1.7	17%
20	0.74	1.03	1.1	1.18	1.61	17%
21	0.71	0.99	1.05	1.13	1.54	17%
22	0.69	0.95	1.00	1.08	1.47	17%
23	0.66	0.91	0.96	1.04	1.41	17%
24	0.64	0.88	0.93	1.00	1.35	17%
25	0.62	0.85	0.89	0.96	1.30	5%
26	0.60	0.82	0.86	0.93	1.25	5%
27	0.58	0.79	0.84	0.90	1.21	5%
28	0.56	0.77	0.81	0.87	1.17	5%
29	0.55	0.75	0.79	0.85	1.13	5%
30	0.54	0.73	0.77	0.82	1.10	5%
31	0.52	0.71	0.75	0.80	1.06	5%
32	0.51	0.69	0.73	0.78	1.04	5%
33	0.50	0.68	0.71	0.77	1.01	5%
34	0.50	0.67	0.70	0.75	0.99	5%
35	0.49	0.66	0.69	0.74	0.97	5%
36	0.48	0.65	0.68	0.73	0.95	5%
37	0.48	0.64	0.67	0.72	0.94	5%
38	0.47	0.63	0.66	0.71	0.92	5%
39	0.47	0.63	0.65	0.70	0.91	5%
40	0.47	0.62	0.65	0.70	0.90	5%
41	0.47	0.62	0.65	0.69	0.89	5%

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Expert consensus on reference ranges for fetal Doppler indices: umbilical artery, uterine artery, middle cerebral artery, and cerebroplacental ratio

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孕周	收缩期峰值流速（PSV，cm/s）					搏动指数（PI）					脑胎盘比（CPR）
孕周	5^th	10^th	50^th	90^th	95^th	5^th	10^th	50^th	90^th	95^th	5^th	10^th	50^th	90^th	95^th
19	15.9	16.9	21.2	26.5	28.1	1.05	1.12	1.43	1.83	1.96	0.74	0.83	1.20	1.69	1.85
20	17.0	18.1	22.6	28.1	29.9	1.11	1.19	1.52	1.94	2.08	0.82	0.91	1.30	1.81	1.98
21	18.1	19.3	24.1	29.9	31.8	1.18	1.26	1.60	2.04	2.19	0.90	1.00	1.41	1.94	2.11
22	19.4	20.6	25.7	31.8	33.8	1.25	1.33	1.69	2.15	2.30	0.98	1.09	1.52	2.07	2.25
23	20.7	22.1	27.4	33.9	36.0	1.32	1.41	1.78	2.25	2.41	1.07	1.18	1.63	2.20	2.39
24	22.2	23.6	29.3	36.1	38.3	1.38	1.47	1.86	2.35	2.52	1.16	1.27	1.74	2.33	2.52
25	23.7	25.2	31.2	38.5	40.8	1.44	1.54	1.94	2.45	2.62	1.24	1.36	1.85	2.46	2.65
26	25.2	26.8	33.2	41.0	43.4	1.50	1.60	2.01	2.53	2.71	1.32	1.45	1.95	2.58	2.78
27	26.8	28.5	35.3	43.6	46.2	1.55	1.65	2.06	2.60	2.78	1.40	1.53	2.05	2.69	2.9
28	28.5	30.3	37.5	46.3	49.1	1.58	1.69	2.11	2.66	2.84	1.47	1.60	2.14	2.79	3.00
29	30.1	32.0	39.7	49.1	52.0	1.61	1.71	2.15	2.70	2.88	1.53	1.67	2.21	2.88	3.09
30	31.7	33.8	42.0	51.9	55.1	1.62	1.73	2.16	2.72	2.90	1.58	1.72	2.28	2.95	3.17
31	33.3	35.5	44.2	54.8	58.2	1.62	1.73	2.16	2.71	2.90	1.62	1.76	2.32	3.01	3.23
32	34.7	37.0	46.3	57.7	61.3	1.61	1.71	2.14	2.69	2.87	1.64	1.78	2.35	3.05	3.27
33	36.0	38.5	48.4	60.5	64.4	1.58	1.68	2.10	2.64	2.82	1.65	1.79	2.36	3.07	3.29
34	37.2	39.8	50.3	63.2	67.4	1.53	1.63	2.04	2.57	2.74	1.63	1.78	2.35	3.06	3.29
35	38.1	40.8	52.0	65.8	70.3	1.47	1.56	1.96	2.47	2.64	1.6	1.74	2.32	3.03	3.26
36	38.7	41.6	53.4	68.2	73.0	1.39	1.48	1.86	2.36	2.52	1.55	1.69	2.27	2.97	3.2
37	39.0	42.0	54.6	70.3	75.5	1.3	1.39	1.75	2.22	2.38	1.48	1.62	2.19	2.89	3.12
38	38.9	42.1	55.3	72.1	77.6	1.2	1.29	1.63	2.07	2.22	1.40	1.53	2.09	2.79	3.01
39	38.5	41.8	55.7	73.5	79.4	1.1	1.18	1.49	1.91	2.05	1.29	1.43	1.97	2.66	2.88

孕周	收缩期峰值流速（PSV，cm/s）					搏动指数（PI）					脑胎盘比（CPR）
孕周	5^th	10^th	50^th	90^th	95^th	5^th	10^th	50^th	90^th	95^th	5^th	10^th	50^th	90^th	95^th
19	15.9	16.9	21.2	26.5	28.1	1.05	1.12	1.43	1.83	1.96	0.74	0.83	1.20	1.69	1.85
20	17.0	18.1	22.6	28.1	29.9	1.11	1.19	1.52	1.94	2.08	0.82	0.91	1.30	1.81	1.98
21	18.1	19.3	24.1	29.9	31.8	1.18	1.26	1.60	2.04	2.19	0.90	1.00	1.41	1.94	2.11
22	19.4	20.6	25.7	31.8	33.8	1.25	1.33	1.69	2.15	2.30	0.98	1.09	1.52	2.07	2.25
23	20.7	22.1	27.4	33.9	36.0	1.32	1.41	1.78	2.25	2.41	1.07	1.18	1.63	2.20	2.39
24	22.2	23.6	29.3	36.1	38.3	1.38	1.47	1.86	2.35	2.52	1.16	1.27	1.74	2.33	2.52
25	23.7	25.2	31.2	38.5	40.8	1.44	1.54	1.94	2.45	2.62	1.24	1.36	1.85	2.46	2.65
26	25.2	26.8	33.2	41.0	43.4	1.50	1.60	2.01	2.53	2.71	1.32	1.45	1.95	2.58	2.78
27	26.8	28.5	35.3	43.6	46.2	1.55	1.65	2.06	2.60	2.78	1.40	1.53	2.05	2.69	2.9
28	28.5	30.3	37.5	46.3	49.1	1.58	1.69	2.11	2.66	2.84	1.47	1.60	2.14	2.79	3.00
29	30.1	32.0	39.7	49.1	52.0	1.61	1.71	2.15	2.70	2.88	1.53	1.67	2.21	2.88	3.09
30	31.7	33.8	42.0	51.9	55.1	1.62	1.73	2.16	2.72	2.90	1.58	1.72	2.28	2.95	3.17
31	33.3	35.5	44.2	54.8	58.2	1.62	1.73	2.16	2.71	2.90	1.62	1.76	2.32	3.01	3.23
32	34.7	37.0	46.3	57.7	61.3	1.61	1.71	2.14	2.69	2.87	1.64	1.78	2.35	3.05	3.27
33	36.0	38.5	48.4	60.5	64.4	1.58	1.68	2.10	2.64	2.82	1.65	1.79	2.36	3.07	3.29
34	37.2	39.8	50.3	63.2	67.4	1.53	1.63	2.04	2.57	2.74	1.63	1.78	2.35	3.06	3.29
35	38.1	40.8	52.0	65.8	70.3	1.47	1.56	1.96	2.47	2.64	1.6	1.74	2.32	3.03	3.26
36	38.7	41.6	53.4	68.2	73.0	1.39	1.48	1.86	2.36	2.52	1.55	1.69	2.27	2.97	3.2
37	39.0	42.0	54.6	70.3	75.5	1.3	1.39	1.75	2.22	2.38	1.48	1.62	2.19	2.89	3.12
38	38.9	42.1	55.3	72.1	77.6	1.2	1.29	1.63	2.07	2.22	1.40	1.53	2.09	2.79	3.01
39	38.5	41.8	55.7	73.5	79.4	1.1	1.18	1.49	1.91	2.05	1.29	1.43	1.97	2.66	2.88

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Expert consensus on reference ranges for fetal Doppler indices: umbilical artery, uterine artery, middle cerebral artery, and cerebroplacental ratio

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