Normal reference value of fetal bowel width during middle and late pregnancy

doi:10.3877/cma.j.issn.1672-6448.2023.03.005

Abstract

Abstract:

Objective

To establish the normal range of fetal bowel width during middle and late pregnancy to provide a reference for the diagnosis of abnormal intestinal dilatation and intestinal malformations.

Methods

Singleton pregnant women who underwent routine middle and late prenatal ultrasound were selected at Peking Union Medical College Hospital from September 2020 to March 2021. Fetal bowel width was measured, and pregnancy outcome was followed up. Based on gestational age, the percentile curves of fetal bowel width (P3, P5, P10, P25, P50, P75, P90, P95, and P97) were fitted by the LMS statistical method.

Results

A total of 224 women with singleton pregnancy were enrolled in this study. The curves of the 95th percentile of the maximum width of the fetal bowel ranged from 8.00 mm to 21.76 mm, and the 97th percentile of the maximum width of the fetal intestine was 8.22 mm to 22.97 mm at 25 to 40 weeks.

Conclusion

The reference value and growth curve of normal singleton fetal bowel width during middle and late pregnancy have been obtained. The P95 and P97 values providea a basis for the diagnosis of abnormal intestinal dilatation, which is of great significance for clinical applications.

Key words: Bowel width, Ultrasound, Fetal, Middle and late pregnancy, Normal reference value

Peipei Zhang, Hua Meng, Zihan Niu, Yunshu Ouyang, Yixiu Zhang, Xining Wu, Yuxin Jiang. Normal reference value of fetal bowel width during middle and late pregnancy[J]. Chinese Journal of Medical Ultrasound (Electronic Edition), 2023, 20(03): 288-291.

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URL: https://chaosheng.cma-cmc.com.cn/EN/10.3877/cma.j.issn.1672-6448.2023.03.005

https://chaosheng.cma-cmc.com.cn/EN/Y2023/V20/I03/288

Figures/Tables 3

References 14

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孕周（周）	P3	P5	P10	P25	P50	P75	P90	P95	P97
25	4.27	4.58	5.02	5.72	6.44	7.11	7.68	8.00	8.22
26	4.63	4.94	5.40	6.13	6.90	7.63	8.27	8.64	8.88
27	4.97	5.28	5.75	6.51	7.33	8.12	8.82	9.23	9.50
28	5.30	5.61	6.08	6.87	7.73	8.59	9.35	9.81	10.10
29	5.66	5.97	6.45	7.26	8.17	9.09	9.92	10.42	10.75
30	6.09	6.41	6.89	7.73	8.68	9.67	10.58	11.13	11.50
31	6.58	6.89	7.39	8.26	9.27	10.33	11.33	11.94	12.35
32	7.13	7.45	7.96	8.87	9.94	11.10	12.21	12.90	13.36
33	7.68	8.01	8.54	9.49	10.63	11.89	13.11	13.89	14.41
34	8.28	8.61	9.16	10.15	11.36	12.72	14.08	14.95	15.55
35	8.93	9.27	9.83	10.86	12.15	13.62	15.12	16.11	16.79
36	9.60	9.95	10.53	11.60	12.96	14.54	16.19	17.29	18.06
37	10.25	10.61	11.20	12.30	13.73	15.42	17.22	18.45	19.32
38	10.89	11.25	11.85	12.98	14.46	16.25	18.19	19.55	20.52
39	11.54	11.90	12.51	13.66	15.18	17.05	19.14	20.63	21.71
40	12.23	12.60	13.21	14.38	15.95	17.90	20.13	21.76	22.97

孕周（周）	P3	P5	P10	P25	P50	P75	P90	P95	P97
25	4.27	4.58	5.02	5.72	6.44	7.11	7.68	8.00	8.22
26	4.63	4.94	5.40	6.13	6.90	7.63	8.27	8.64	8.88
27	4.97	5.28	5.75	6.51	7.33	8.12	8.82	9.23	9.50
28	5.30	5.61	6.08	6.87	7.73	8.59	9.35	9.81	10.10
29	5.66	5.97	6.45	7.26	8.17	9.09	9.92	10.42	10.75
30	6.09	6.41	6.89	7.73	8.68	9.67	10.58	11.13	11.50
31	6.58	6.89	7.39	8.26	9.27	10.33	11.33	11.94	12.35
32	7.13	7.45	7.96	8.87	9.94	11.10	12.21	12.90	13.36
33	7.68	8.01	8.54	9.49	10.63	11.89	13.11	13.89	14.41
34	8.28	8.61	9.16	10.15	11.36	12.72	14.08	14.95	15.55
35	8.93	9.27	9.83	10.86	12.15	13.62	15.12	16.11	16.79
36	9.60	9.95	10.53	11.60	12.96	14.54	16.19	17.29	18.06
37	10.25	10.61	11.20	12.30	13.73	15.42	17.22	18.45	19.32
38	10.89	11.25	11.85	12.98	14.46	16.25	18.19	19.55	20.52
39	11.54	11.90	12.51	13.66	15.18	17.05	19.14	20.63	21.71
40	12.23	12.60	13.21	14.38	15.95	17.90	20.13	21.76	22.97

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