Crown–rump length measurement error: impact on assessment of growth. (1st September 2021)
- Record Type:
- Journal Article
- Title:
- Crown–rump length measurement error: impact on assessment of growth. (1st September 2021)
- Main Title:
- Crown–rump length measurement error: impact on assessment of growth
- Authors:
- Gadsbøll, K.
Wright, A.
Kristensen, S. E.
Verfaille, V.
Nicolaides, K. H.
Wright, D.
Petersen, O. B. - Abstract:
- ABSTRACT: Objective: To examine the impact of first‐trimester crown–rump length (CRL) measurement error on the interpretation of estimated fetal weight (EFW) and classification of fetuses as small‐, large‐ or appropriate‐for‐gestational age on subsequent growth scans. Methods: We examined the effects of errors of ± 2, ± 3 and ± 4 mm in the measurement of fetal CRL on percentiles of EFW at 20, 32 and 36 weeks' gestation and classification as small‐, large‐ or appropriate‐for‐gestational age. Published data on CRL measurement error were used to determine variation present in practice. Results: A measurement error of −2 mm in first‐trimester CRL shifts an EFW on the 10 th percentile at the 20‐week scan to around the 20 th percentile, and the effect of a CRL measurement error of + 2 mm would shift an EFW on the 10 th percentile to around the 5 th percentile. At 32 weeks, a first‐trimester CRL measurement error would shift an EFW on the 10 th percentile to the 7 th (+ 2 mm) or 14 th (−2 mm) percentile; at 36 weeks, the EFW would shift from the 10 th percentile to the 8 th (+ 2 mm) or 12 th (−2 mm) percentile. Published data suggest that measurement errors of 2 mm or more are common in practice. Conclusion: Because of the widespread and potentially severe consequences of CRL measurement errors as small as 2 mm on clinical assessment, patient management and research results, there is a need to increase awareness of the impact of CRL measurement error and to reduce measurement errorABSTRACT: Objective: To examine the impact of first‐trimester crown–rump length (CRL) measurement error on the interpretation of estimated fetal weight (EFW) and classification of fetuses as small‐, large‐ or appropriate‐for‐gestational age on subsequent growth scans. Methods: We examined the effects of errors of ± 2, ± 3 and ± 4 mm in the measurement of fetal CRL on percentiles of EFW at 20, 32 and 36 weeks' gestation and classification as small‐, large‐ or appropriate‐for‐gestational age. Published data on CRL measurement error were used to determine variation present in practice. Results: A measurement error of −2 mm in first‐trimester CRL shifts an EFW on the 10 th percentile at the 20‐week scan to around the 20 th percentile, and the effect of a CRL measurement error of + 2 mm would shift an EFW on the 10 th percentile to around the 5 th percentile. At 32 weeks, a first‐trimester CRL measurement error would shift an EFW on the 10 th percentile to the 7 th (+ 2 mm) or 14 th (−2 mm) percentile; at 36 weeks, the EFW would shift from the 10 th percentile to the 8 th (+ 2 mm) or 12 th (−2 mm) percentile. Published data suggest that measurement errors of 2 mm or more are common in practice. Conclusion: Because of the widespread and potentially severe consequences of CRL measurement errors as small as 2 mm on clinical assessment, patient management and research results, there is a need to increase awareness of the impact of CRL measurement error and to reduce measurement error variation through standardization and quality control. © 2021 International Society of Ultrasound in Obstetrics and Gynecology. Abstract : Linked article: There is a comment on this article by Stirnemann et al. Click here to view the Editorial. This article's abstract has been translated into Spanish and Chinese. Follow the links from the abstract to view the translations. RESUMEN: Objetivo: Examinar el impacto del error de medición de la longitud céfalo‐caudal (LCC) en el primer trimestre sobre la interpretación del peso estimado del feto (PEF) y la clasificación de los fetos como pequeño, grande o adecuado para la edad gestacional en las exploraciones posteriores del crecimiento. Métodos: Se examinaron los efectos de los errores de ±2, ±3 y ±4 mm en la medición de la LCC fetal sobre los percentiles del PEF a las 20, 32 y 36 semanas de gestación y la clasificación como pequeño, grande o adecuado para la edad gestacional. Se utilizaron datos publicados sobre el error de medición de la LCC para determinar la variación presente en la práctica. Resultados: Un error de medición de ‐2 mm en la LCC del primer trimestre desplaza un PEF en el percentil 10 en la exploración de la semana 20 a alrededor del percentil 20, y el efecto de un error de medición de la LCC de +2 mm desplazaría un PEF en el percentil 10 a alrededor del percentil 5. A las 32 semanas, un error de medición de la LCC en el primer trimestre desplazaría un PEF en el percentil 10 al percentil 7 (+2 mm) o al 14 (‐2 mm); a las 36 semanas, un PEF pasaría del percentil 10 al 8 (+2 mm) o al 12 (‐2 mm). Los datos publicados sugieren que los errores de medición de 2 mm o más son comunes en la práctica. Conclusión: Debido a las consecuencias generalizadas y potencialmente graves de los errores de medición de la LCC de tan solo 2 mm en la evaluación clínica, el tratamiento de las pacientes y los resultados de la investigación es necesario aumentar la conciencia sobre el impacto del error de medición de la LCC y reducir la variación del error de medición mediante la estandarización y el control de calidad. © 2021 International Society of Ultrasound in Obstetrics and Gynecology. 摘要: 目的: 检查早期妊娠顶臀长度(CRL)测量误差对估计胎儿重量(EFW)的理解以及后续胎儿生长发育超声检测对小于胎龄儿、大于胎龄儿和适于胎龄儿分类的影响。 方法: 我们检查了胎儿顶臀长度测量误差±2mm、±3mm和±4mm对在孕20周、32周和36周的EFW百分位数的影响,以及对小于胎龄儿、大于胎龄儿和适于胎龄儿分类的影响。有关CRL测量误差的已发表数据被用于确定在实践中存在的变化。 结果: 对早期妊娠CRL的‐2mm测量误差将孕20周超声检测的EFW从第10百分位数误算为约第20百分位数,而CRL的+2mm测量误差的影响则是将EFW从第10百分位数误算为约第5百分位数。在孕32周,早期妊娠CRL的测量误差会将EFW从第10百分位数误算为第7百分位数(+2 mm)或第14百分位数(‐2 mm);在孕36周,EFW从第10百分位数误算为第8百分位数(+2 mm)或第12百分位数(‐2 mm)。已发表的数据表明,2mm或更大的测量误差在实践中是常见的。 结论: 由于在CRL测量误差(小至2mm)在临床评估、患者管理和研究结果上的普遍性及潜在严重后果,有必要提高对CRL测量误差影响的意识并通过标准化和质量控制来减少测量误差变化。© 2021年国际妇产科超声学会。 … (more)
- Is Part Of:
- Ultrasound in obstetrics & gynecology. Volume 58:Number 3(2021)
- Journal:
- Ultrasound in obstetrics & gynecology
- Issue:
- Volume 58:Number 3(2021)
- Issue Display:
- Volume 58, Issue 3 (2021)
- Year:
- 2021
- Volume:
- 58
- Issue:
- 3
- Issue Sort Value:
- 2021-0058-0003-0000
- Page Start:
- 354
- Page End:
- 359
- Publication Date:
- 2021-09-01
- Subjects:
- crown–rump length -- estimated fetal weight -- growth scan -- large‐for‐gestational age -- measurement error -- small‐for‐gestational age
Ultrasonics in obstetrics -- Periodicals
Generative organs, Female -- Diseases -- Diagnosis -- Periodicals
Diagnosis, Ultrasonic -- Periodicals
Genital Diseases, Female -- ultrasonography -- Periodicals
Ultrasonography, Prenatal -- Periodicals
618.047543 - Journal URLs:
- http://obgyn.onlinelibrary.wiley.com/hub/journal/10.1002/(ISSN)1469-0705/ ↗
http://onlinelibrary.wiley.com/ ↗ - DOI:
- 10.1002/uog.23690 ↗
- Languages:
- English
- ISSNs:
- 0960-7692
- Deposit Type:
- Legaldeposit
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- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - 9082.815300
British Library DSC - BLDSS-3PM
British Library STI - ELD Digital store - Ingest File:
- 24392.xml