Journal of Ultrasound in Medicine, Vol 4, Issue 4 175-182, Copyright © 1985 by American Institute of Ultrasound in Medicine
The use of the abdominal circumference as a means of assessing M-mode ventricular dimensions during the second and third trimesters of pregnancy in the normal human fetus
G. R. DeVore, B. Siassi and L. D. Platt
Eighty-two normal fetuses were scanned from 18 to 41 weeks of gestation.
The following M-mode measurements were correlated with the abdominal
circumference: diastolic biventricular outer (r = 0.951) and inner (r =
0.948) dimensions; diastolic right (r = 0.942) and left (r = 0.925)
internal dimensions; tricuspid (r = 0.916) and mitral (r = 0.900) valve
opening excursions; and right (r = 0.774), left (r = 0.731), and
interventricular septal (r = 0.753) wall thickness. Polynomial regression
demonstrated that linear regression best described the data from which the
mean and 5 per cent and 95 per cent confidence limits for predicted M-mode
measurements were computed for the abdominal circumference between 12 and
35 cm.
