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Fetal thigh circumference: A critical evaluation of its relationship to menstrual age

✍ Scribed by Dr. Russell L. Deter; Ahmed Warda; Ivar K. Rossavik; Greg Duncan; Frank P. Hadlock

Publisher: John Wiley and Sons
Year: 1986
Tongue: English
Weight: 514 KB
Volume: 14
Category: Article
ISSN: 0091-2751
DOI: 10.1002/jcu.1870140205

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✦ Synopsis

To provide standards for evaluating fetal thigh circumference measure- ments obtained with ultrasound, a study of the growth of this parameter during pregnancy was made. Because of possible sampling problems before 22 weeks (menstrual age), this investigation was limited to the 22-40 week time period. Regression analysis indicated that the optimal model (R2 = 88.9%) for describing thigh circumference (ThC) growth was a power function. ThC variability increased with menstrual age, from 1.3 cm at 22 weeks to 3.1 cm at 40 weeks. These data were used to construct a standard growth curve for the ThC.

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Fetal head and abdominal circumferences: II. A critical re-evaluation of the relationship to menstrual age

✍ Russell L. Deter; Ronald B. Harrist; Frank P. Hadlock; Robert J. Carpenter 📂 Article 📅 1982 🏛 John Wiley and Sons 🌐 English ⚖ 638 KB

## Abstract Dynamic image ultrasound was utilized to re‐examine the changes in head and abdominal circumferences (HC, AC) with gestational age in normal fetuses. Data collected in a cross‐sectional study of fetal growth were evaluated using mathematical modeling techniques. The results of this anal