Tissue characterization by imaging the local frequency dependent relative backscatter coefficient

Klaus V. Jenderka; Tilio Gaertner; Ulrich Cobet; Mario Zacharias; Hans Heynemann

doi:10.1117/12.382236

12 April 2000 Tissue characterization by imaging the local frequency dependent relative backscatter coefficient

Klaus V. Jenderka, Tilio Gaertner, Ulrich Cobet, Mario Zacharias, Hans Heynemann

Proceedings Volume 3982, Medical Imaging 2000: Ultrasonic Imaging and Signal Processing; (2000) https://doi.org/10.1117/12.382236
Event: Medical Imaging 2000, 2000, San Diego, CA, United States

Abstract

Conventional B-scan systems only use the amplitude information of the backscattered signals for imaging. By imaging the local frequency dependent relative backscatter coefficient it is possible to improve the image contrast and to reduce system effects. Based on spectral analysis of rf echo signals, a procedure was developed to correct for system specific effects and to determine the relative backscatter coefficient. A new image with improved contrast results from grayscale or color coding of the frequency components of the relative backscatter coefficient. The method was applied to in vivo measurements of human prostate and transplanted kidney. For cancerous prostate tissue the relative backscatter coefficient is about 8 dB lower than for normal tissue regions. The results of the investigations on kidneys show no correlation to the current function of the organ. Certainly the different course of the frequency dependence of the relative backscatter coefficient of renal cortex and calices regions allows a contrast improvement. The method provides a system independent imaging procedure with improved image contrast for tissues with different scattering behavior and slightly reduced spatial resolution. Imaging the relative backscatter coefficient will not substitute the conventional B-mode image, but it is a useful tool providing additional information about the tissue state.

Citation Download Citation

Klaus V. Jenderka, Tilio Gaertner, Ulrich Cobet, Mario Zacharias, and Hans Heynemann "Tissue characterization by imaging the local frequency dependent relative backscatter coefficient", Proc. SPIE 3982, Medical Imaging 2000: Ultrasonic Imaging and Signal Processing, (12 April 2000); https://doi.org/10.1117/12.382236

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available