Ultrasound Attenuation Imaging

Result code in IS VaVaI

RIV/00216305:26220/04:PU46295 - isvavai.cz

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Ultrasound Attenuation Imaging

Original language description

This paper studies imaging of tissue-specific ultrasound attenuation. A new method is presented where the imaged parameter is the mean attenuation coefficient between the probe and the given pixel position. The method is based on the least-mean-squares approximation of short segments of A-scan radiofrequency signals using a physical model. The parametric image shows some of the tissue structures. It can also be used as a preliminary step in estimation of the ultrasound attenuation coefficient. FFurthermore, the mean attenuation coefficient is a parameter influencing the space-variant ultrasonographic point spread function, so it can be used to improve the spatial resolution of ultrasound image through deconvolution. Testing of the method on images of atissue-mimicking phantom, and on clinical images of liver and thigh showed relatively good agreement of the estimated attenuation coefficients with the known reference values

Czech name

Zobrazování útlumu ultrazvuku

Czech description

This paper studies imaging of tissue-specific ultrasound attenuation. A new method is presented where the imaged parameter is the mean attenuation coefficient between the probe and the given pixel position. The method is based on the least-mean-squares approximation of short segments of A-scan radiofrequency signals using a physical model. The parametric image shows some of the tissue structures. It can also be used as a preliminary step in estimation of the ultrasound attenuation coefficient. Furthermoore, the mean attenuation coefficient is a parameter influencing the space-variant ultrasonographic point spread function, so it can be used to improve the spatial resolution of ultrasound image through deconvolution. Testing of the method on images of atissue-mimicking phantom, and on clinical images of liver and thigh showed relatively good agreement of the estimated attenuation coefficients with the known reference values

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JD - Use of computers, robotics and its application

OECD FORD branch

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Project

GA102/02/0890: Analysis od medical ultrasonographic data aimed at 3D imaging in cardiology

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2004

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Electrical Engineering

ISSN

1335-3632

e-ISSN

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Volume of the periodical

55

Issue of the periodical within the volume

7-8

Country of publishing house

SK - SLOVAKIA

Number of pages

8

Pages from-to

180-187

UT code for WoS article

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EID of the result in the Scopus database

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