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Literature
References and Literature can be found here about:
Gestation Calculator
References
- Robinson HP, Fleming JEE. A critical evaluation
of sonar 'crown-rump length' measurements. Br J Obstet
Gynaecol 1975, 82:702-10
- Mul T, Mongelli M, Gardosi J A comparative analysis
of second trimester ultrasound dating formulae
in pregnancies conceived with artificial reproductive
techniques. Ultrasound Obstet Gynecol, 1996;8:397-402
- Altman DG, Chitty LS. New charts for ultrasound
dating of pregnancy. Ultrasound Obstet Gynecol
1997;10:174-91
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Growth
Charts
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For detailed information including background,
concepts, coefficients and references, click
here |
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For an overview article on 'New Definition
of SGA', click
here |
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RCOG Green Top Guideline Number 31: The
Investigation and Management of the Small-for-gestational-age
fetus. Click
here to view |
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Estimating
Fetal Weight
The calculator is based on Campbell's
(A) formula [1] and Hadlock's (H, A and F) formula
[2],
where: A = Abdominal circumference; F =
Femur length; H = Head circumference
References
- Campbell S, Wilkin D. Ultrasonic
measurement of fetal abdomen circumference in the
estimation of fetal weight. Br J Obstet Gynecol
1975; 82:689-697
- Hadlock FP, Harris RB, Sharman
RS, Deter RL, Park SK. Estimation of fetal
weight with the use of head, body and femur measurements
- a prospective study. Am J Obstet Gynecol
1985; 151:333-337.
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Fetal Weight | Back
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Centile
Calculator
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For detailed information including background,
concepts, coefficients and references, click
here |
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References
- Gardosi J, Chang A, Kalyan B, Sahota D, Symonds
EM. Customised antenatal growth charts.
Lancet 1992;339:283-7
- Gardosi J, Mongelli M, Wilcox M, Chang A. An
adjustable fetal weight standard.
Ultrasound Obstet Gynecol 1995;6: 168 - 74
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