Title
Comparison of statistical models for the detection of uniform reverberant shear wave fields
Date Issued
01 January 2021
Access level
metadata only access
Resource Type
conference paper
Publisher(s)
IEEE Computer Society
Abstract
Reverberant shear wave field elastography (R-SWE) is an image modality that evaluates tissue stiffness by creating a reverberant shear wave field in all directions of the medium. This implementation facilitates the estimation of the shear wave speed (SWS), ergo the viscoelasticity of the tissue. Its feasibility has been validated in breast, liver, corneas and plantar tissue. Nevertheless, the calculus of the SWS is verified as long as a uniform field is generated. Current method uses the coefficient of determination (R2) derived of a curve fitting as a quality parameter of reverberation. In this work, the uniformity phenomenon in reveberant fields is studied through the extraction and analysis of statistical estimators used in electromagnetic fields with their equivalency in acoustic waves to implement machine learning classifiers of uniform reverberant fields such as Logistic Regression, LDA, Lineal SVM and Gaussian SVM. The models detect uniform regions with accuracies of 0.749, 0.746, 0.715 and 0.811, respectively.
Language
English
OCDE Knowledge area
Tecnología médica de laboratorio (análisis de muestras, tecnologías para el diagnóstico) Tecnología para la identificación y funcionamiento del ADN, proteínas y enzimas y como influencian la enfermedad) Ingeniería médica
Publication version
Version of Record
Scopus EID
2-s2.0-85122882304
Source
IEEE International Ultrasonics Symposium, IUS
ISSN of the container
1948-5719
Sponsor(s)
ACKNOWLEDGMENT The authors thank Gilmer Flores and Fernando Gutierrez for their helpful suggestions and support. Stefano Romero was under the doctoral scholarship program in Computer Science (174-2020-FONDECYT-PUCP). In addition, Benjamin Cas-taneda was supported by the PUCP Research Period Award.
Sources of information: Directorio de Producción Científica Scopus