echo-ranging

echo-ranging

 [ek″o-rānj´ing]
in ultrasonography, determination of the position or depth of a body structure on the basis of the time interval between the moment an ultrasonic pulse is transmitted and the moment its echo is received.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.