Ultrasonic determination  of the size of cerebral ventricular system.
D000293:Adolescent; D000328:Adult; D001927:Brain Diseases / Q000175:diagnosis*; D002552:Cerebral Ventricles; D002648:Child; D002675:Child, Preschool; D004453:Echoencephalography; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008875:Middle Aged