Related Experiment Video
Updated: Aug 8, 2026

08:04
Murine Fetal Echocardiography
Published on: February 15, 2013
Fetal ear length
1Department of Diagnostic Radiology Rush-Presbyterian-St Luke's Medical Center, Chicago, IL 60612.
Pediatrics
|April 1, 1988
Abstract:
A prenatal standard for ear length was developed from ultrasonic images of 180 normal subjects. Length increased from about 6 mm at 15 weeks to 33 mm at term and was well fit by linear regression (r2 = .96). Short ears (greater than or equal to 1.5 SD below gestational age average) were associated strongly, and specifically, with chromosomal disorders.

