Journal article
On modeling the tissue response from ultrasonic B-scan images
IEEE transactions on medical imaging, v 15(4), pp 479-490
01 Jan 1996
PMID: 18215929
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
We model tissue as a collection of point scatterers embedded in a uniform media, and show that the higher-order statistics (HOS) of the scatterer spacing distribution can be estimated from digitized radio frequency (RF) scan line segments and be used in obtaining tissue signatures. We assume that RF echoes are non-Gaussian, on the grounds of empirical/theoretical justifications presented in the literature. Based on our model for tissue microstructure, we develop schemes for the estimation of resolvable periodicity as well as correlations among nonperiodic scatterers. Using HOS of the scattered signal, we define as tissue 'color' a quantity that describes the scatterer spatial correlations, show how to evaluate it from the higher-order correlations of the digitized RF scan line segments, and investigate its potential as a tissue signature. The tools employed, i.e., HOS, were chosen as the most appropriate ones because they suppress Gaussian processes, such as the one arising from the diffused scatterers. HOS, unlike second-order statistics, also preserve the Fourier-phase of the signature, the color of the tissue response. Working on simulated and clinical data, we show that the proposed periodicity estimation technique is superior to the widely used power spectrum and cepstrum techniques in terms of the accuracy of estimations. We also show that even when there is no significant periodicity in data, we are still able to characterize tissues using signatures based on the higher-order cumulant structure of the scatterer spacing distribution.
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Details
- Title
- On modeling the tissue response from ultrasonic B-scan images
- Creators
- Udantha Abeyratne - Drexel UniversityAthina Petropulu - School of Engineering, Electrical & Computer EngineeringJohn Reid
- Publication Details
- IEEE transactions on medical imaging, v 15(4), pp 479-490
- Publisher
- The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- School of Biomedical Engineering, Science, and Health Systems
- Web of Science ID
- WOS:A1996VA94300008
- Scopus ID
- 2-s2.0-0030216928
- Other Identifier
- 991019350666904721
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InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Computer Science, Interdisciplinary Applications
- Engineering, Biomedical
- Engineering, Electrical & Electronic
- Imaging Science & Photographic Technology
- Radiology, Nuclear Medicine & Medical Imaging