Estimating scatterer properties in rat fibroadenomas using various mathematical form factors

Author

Hafez, Zachary T. ; Wirtzfeld, Lauren A. ; Battles, Andrew ; Miller, Rita J. ; Sarwate, Sandhya ; Oelze, Michael L. ; Hall, Timothy J. ; O´Brien, William D., Jr.

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Illinois, Urbana, IL, USA

fYear

2009

fDate

20-23 Sept. 2009

Firstpage

294

Lastpage

296

Abstract

Quantitative ultrasound (QUS) imaging is a model-based approach aimed at lesion detection and classification. In this study, the RF backscattered signals from rat fibroadenomas were fit to various mathematical models to yield effective scatterer diameter (ESD) estimates which are tied to tissue microstructure. The goal of these experiments was to understand potential sources of scattering in live tissue across a wide frequency range and how results from different models compare to one another.

Keywords

Gaussian distribution; backscatter; biomedical transducers; biomedical ultrasonics; cancer; physiological models; tumours; ultrasonic imaging; ultrasonic transducers; RF backscattered signals; Sprague Dawley rats; acini; effective scatterer diameter; fibroadenoma tumors; frequency 1.4 MHz to 18 MHz; glass bead; lesion detection; single-element transducers; size 1 cm to 6 cm; spherical Gaussian form factors; tissue microstructure; ultrasound imaging; Animals; Electrostatic discharge; Mathematical model; Microstructure; Neoplasms; RF signals; Radio frequency; Scattering; Ultrasonic imaging; Ultrasonic transducers;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium (IUS), 2009 IEEE International

Conference_Location

Rome

ISSN

1948-5719

Print_ISBN

978-1-4244-4389-5

Electronic_ISBN

1948-5719

Type

conf

DOI

10.1109/ULTSYM.2009.5441787

Filename

5441787