American Journal of Roentgenology, Vol 132, Issue 2, 243-247
Copyright © 1979 by American Roentgen Ray Society
Ultrasonic demonstration of myometrial contractions in intrauterine pregnancy
RL Wilson
and
NJ Worthen
An incidental finding associated with ultrasound examination of early intrauterine pregnancy is transient thickening of a limited region of the myometrium, which we interpret as a localized contraction. Contractions were demonstrated in nearly all 881 patients examined and were shown to significantly change in configuration within a 30 min period. In all except one patient, the contractions were completely asymptomatic, and they seem to be of no discernible clinical significance.