Determination of attenuation-velocity products in a layered homogeneous medium

✍ Scribed by Joseph Nodar; Bong Ho

• Publisher: John Wiley and Sons
• Year: 1991
• Tongue: English
• Weight: 565 KB
• Volume: 3
• Category: Article
• ISSN: 0899-9457
• DOI: 10.1002/ima.1850030105

✦ Synopsis

Abstract

Attenuation imaging has the promise to become a measurement technique for ultrasound imaging systems more sophisticated than those we currently possess; however, the difficulties in using the presently available methods tend to limit this potential for the non‐specialist. In our recent work, we have investigated the attenuation imaging problem, and have had some success with an alternative technique, namely, attenuation‐velocity product imaging. In certain cases this can be an acceptable substitute for purely attenuation imaging, particularly for the soft tissues encountered in some diagnostic medical situations where the acoustic velocities of the various layers are all of approximately the same value. This article discusses our technique in detail, beginning with fundamental considerations. We make no unreasonable assumptions about the object under study, and yet are able to show the uniqueness of the solution and also deal effectively with the problem of multiple reflections. The data encountered in this experimental configuration have several intriguing properties, which allow us to draw some conclusions about acoustic imaging in general.