Anterior-posterior thigh diameter measured by two-dimensional sonography. Indicator of fetal age at 18 to 28 weeks gestation?
SQUMJ-Sultan Qaboos University Medical Journal. 2006; 6 (2): 47-58
in English
| IMEMR
| ID: emr-81184
ABSTRACT
Little published research exists in the area of fetal thigh biometry, specifically in the use of the anterior-posterior fetal thigh diameter [APTD]. A continuing review of existing practices needs to be coupled with evaluation of alternate or additional methodology. This study evaluated the usefulness and direct correlation of a simple, new method of predicting fetal age by measurement of the anterior-posterior thigh diameter [APTD] in a normal 18-to 28 week pregnancies using two-dimensional sonography. This was a quantitative prospective study of 55 patients in the High Level General Hospital, Alberta, Canada. Anterior-posterior thigh diameters [APTD] were sonographically measured and the normal range for each week of pregnancy was determined five times for reliability. Significant correlation was found between [APTD] and fetal age from simple line regression analysis, with >99.9% confidence intervals at each week from 18 to 28 weeks gestation. There was a correlation of 1 mm APTD per 1 week of fetal age. The standard error of estimation was very low at [0.08664] in edition [r>0.9993] and [p < than 0.0001]. The residual scatter plots confirmed the APTD validity. APTD is a reliable and valid method for assessing fetal age in a normal pregnancy and may be particularly useful when other parameters are unable accurately to predict fetal age. An accurate linear measurement of multiple fetal parameters allows a more complete profile of fetal growth and estimated date of delivery [EDD]. APTD may also be useful in identifying fetal growth problems. All of the values of fetal age lie directly on the "best-fit" regression line. Since the coefficient of determination [Rsq] is very high, this model is very effective
Search on Google
Index:
IMEMR (Eastern Mediterranean)
Main subject:
Thigh
/
Pregnancy
/
Anthropometry
/
Predictive Value of Tests
/
Prospective Studies
/
Ultrasonography, Prenatal
Limits:
Female
/
Humans
Language:
English
Journal:
Sultan Qaboos Univ. Med. J.
Year:
2006
Similar
MEDLINE
...
LILACS
LIS