<title>Medical Imaging Capability Of Liquid Surface Ultrasonic Holography</title>

Abstract

Liquid surface acoustical holography offers a new and exciting method of medical imaging. In comparison to the conventional ultrasonic B scan, (pulse-echo tomography*) acoustical holography offers the advantage of a true focused image, a continuous gray scale image, and a through transmission mode which displays the object relative to both absorption contrast and phase contrast. In addition, it is a real time imaging system allowing for a wide range of dynamic studies. The purpose of this report is to compare the imaging properties of a prototype system with imaging properties which we forsee to be necessary for broad medical application.