Crown–rump length measurement error: impact on assessment of growth

Gadsbøll, Kasper; Wright, Alan; Kristensen, S E; Verfaille, Viki; Nicolaïdes, K. H.; Wright, Dave; Petersen, Olav Bjørn

doi:10.1002/uog.23690

Cited by 11 publications

(12 citation statements)

References 43 publications

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“…Compared with the results of the study by Wang Huiyun, the mesiodistal and buccolingual diameters and crown length of the present total sample for all the primary teeth type were significantly smaller at the 0.1% level, except for the mesiodistal diameter of UD and LE and crown length of LB, which were significantly smaller at the 1% level. This is not consistent with the results of the study by Gadsbøll et al (24), which found that the size of primary teeth was slightly larger than that of 50 years ago in North American white children. However our study is consistent with what McCollum and Sharpe (34) pointed out in the 1970s that the reduction in the size of the jaws during hominid evolution was accompanied by a general reduction of tooth size.…”

Section: Discussioncontrasting

confidence: 99%

“…In this study, 308 extracted primary teeth and the CBCT images of 407 primary teeth of northwest Chinese were collected. Tooth dimensions can be obtained by measuring the mesiodistal and buccolingual crown diameters and crown length (23,24). The crown index and crown area are often used to obtain the overall size of primary teeth, as they can provide useful summaries and comprehensive descriptions of the morphology of primary teeth ( 22).…”

Section: Discussionmentioning

confidence: 99%

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Measurement of the morphological data of primary teeth in northwest China

Yang²,

Zhang³

et al. 2022

Front. Pediatr.

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ObjectiveThis study aims to digitally obtain the morphological data of children's primary teeth in northwest China and evaluate the reliability of digitally obtaining the anatomical morphological data of primary teeth.MethodsA total of 308 extracted primary teeth and cone-beam computed tomography (CBCT) images of 407 primary teeth were collected in northwest China. Electronic digital Vernier callipers (accuracy: 0.01 mm) were used to measure the mesiodistal and buccolingual diameters and crown length of the extracted primary teeth and calculate the crown area and crown index. Each sample was scanned with an intraoral scanner (Trios2 3shape, Denmark), and the resulting stl format files were imported into Geomagic Wrap 2015 to measure the axial and buccolingual diameters and crown length. The crown area and crown index were then calculated. After verifying the accuracy of the CBCT image measurement, the CBCT image data of 407 samples were measured in SmartV software using the “measure length” function by referring to the coronal, sagittal, and horizontal planes to adjust the position of the reference line.ResultsNorthern Chinese have larger primary teeth than other populations (Japanese, white American, African, Icelander, Spanish, and Dominican Mestizo) but smaller primary teeth than native Australians. Compared to Indian primary teeth, northwest Chinese's primary teeth have larger diameters on the central axis and smaller diameters on the buccolingual surface. Male teeth are usually larger than female teeth. Compared with the results of Wang Huiyun's study, the axial and buccolingual diameters and crown length of all native tooth types in this total sample were significantly smaller at the 0.1% level, and only the axial diameters of the upper first molar and lower second molar and the crown length of the lower lateral incisor were significantly smaller at the 1% level. The results of the intraclass correlation coefficient of 308 extracted primary teeth expressed an excellent degree of agreement between the callipers and intraoral scanner for the following: mesiodistal diameter (0.956–0.991), buccolingual diameter (0.963–0.989), crown length [0.864–0.992, except for the upper canine (0.690)], crown index (0.850–0.975), and crown area (0.946–0.993).ConclusionThe digital measurements of the intraoral scanner and CBCT image are in good agreement with the manual measurement of the Vernier calliper. The difference between the anatomical morphology size of the primary teeth measured in this study and the results of different populations could be due to different genetic backgrounds and environmental factors.

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Section: Discussioncontrasting

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Measurement of the morphological data of primary teeth in northwest China

Yang²,

Zhang³

et al. 2022

Front. Pediatr.

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“…Individualization of antenatal care involves applying universal models on a large scale, leveraging biomarkers measured according to specific criteria. This method may be prone to increased measurement error, as previous studies have demonstrated 7,[9][10][11][12] .…”

Section: Personalization Of Carementioning

confidence: 99%

“…Another nationwide cross-sectional study revealed that the dating formula used has a significant impact on the evaluation of fetal biometry later in pregnancy 11 . Consequently, there is an urgent need to increase quality awareness, reach a consensus about reference ranges used and launch auditing policies for this crucial measurement 10,11 .…”

Section: Clinical Impact Of Crown-rump Length Measurement Errormentioning

confidence: 99%

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Audit of fetal biometry: understanding sources of error to improve our practice

Papastefanou

Nicolaïdes

Salomon

2023

Ultrasound in Obstet & Gyne

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AIUM Practice Parameter for the Performance of Standard Diagnostic Obstetric Ultrasound

2024

J of Ultrasound Medicine

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in Medicine (AIUM) is a multidisciplinary association dedicated to advancing the safe and effective use of ultrasound in medicine through professional and public education, research, development of clinical practice parameters, and accreditation of practices performing ultrasound examinations.The AIUM Practice Parameter for the Performance of Standard Diagnostic Obstetric Ultrasound was revised by the AIUM in collaboration with other organizations whose members use ultrasound for performing this examination(s) (see "Acknowledgments"). Recommendations for personnel requirements, the request for the examination, documentation, quality assurance, and safety may vary among the organizations and may be addressed by each separately.This practice parameter is intended to provide the medical ultrasound community with recommendations for the performance and recording of high-quality ultrasound examinations. The parameters reflect what the AIUM considers the appropriate criteria for this type of ultrasound examination but are not intended to establish a legal standard of care. Examinations performed in this specialty area are expected to follow the parameter with recognition that deviations may occur depending on the clinical situation.Obstetric ultrasound should be performed only when there is a valid medical reason, and the lowest possible acoustic output settings should be used to gain the necessary diagnostic information. [1][2][3] Although this practice parameter describes the key elements of standard ultrasound examinations in the first, second, and third trimesters of pregnancy, a more detailed fetal anatomic examination may be necessary in some cases, such as when an abnormality is found or suspected on the standard examination or in pregnancies at high risk for fetal anomaly. 4 In some cases, other imaging may be necessary as well.Although it is not possible to detect all structural congenital anomalies with diagnostic ultrasound, adherence to the following practice parameters will increase the likelihood of detecting many fetal abnormalities.

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Crown–rump length measurement error: impact on assessment of growth

Cited by 11 publications

References 43 publications

Measurement of the morphological data of primary teeth in northwest China

Measurement of the morphological data of primary teeth in northwest China

Audit of fetal biometry: understanding sources of error to improve our practice

AIUM Practice Parameter for the Performance of Standard Diagnostic Obstetric Ultrasound

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