Title

Characterization of Ultrasonic B-Scans Using Non-Rayleigh Statistics

Document Type

Article

Language

eng

Format of Original

9 p.

Publication Date

1995

Publisher

Elsevier Inc.

Source Publication

Ultrasound in Medicine and Biology

Source ISSN

0301-5629

Original Item ID

DOI: 10.1016/S0301-5629(94)00105-7

Abstract

The envelope of the ultrasonic echo backscattered from tissues is modeled using non-Rayleigh statistics, namely the K-distribution. We show that the K-distribution can be used to describe the envelope of the echo, and its parameters may be used to distinguish between different regions in ultrasonic B-scan images. The validity of the model is tested using phantoms. Preliminary results indicate that the parameters of the K-distribution may be used to separate targets, in which the number of scatterers or the scattering cross-sections differ from that of the background. The method of employing the parameters of the K-distribution appears to be better than the methods based solely on the signal-to-noise ratio.

Comments

Ultrasound in Medicine & Biology, Vol. 21, No. 2 (1995): 161-170. DOI.

Dr. Robert Molthen was affiliated with Drexel University at time of publication.