Estimation of ultrasound attenuation coefficient using log-spectrum domain processing

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F04%3APU46292" target="_blank" >RIV/00216305:26220/04:PU46292 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Estimation of ultrasound attenuation coefficient using log-spectrum domain processing

Original language description

Ultrasound attenuation coefficient is an important diagnostic parameter in medical ultrasonography. Furthermore, it is a parameter of a component related to the attenuation process of the space-variant point spread function, which can be used to improvethe spatial resolution of ultrasound images through deconvolution. In this paper, a recently published approach to the estimation of the ultrasound attenuation coefficient from B-scan radiofrequency data is extended and explained in a detail. First, a paarametric image of the mean attenuation coefficients between the probe and a given pixel position is computed by applying linear regression to log-spectra of short segments of radiofrequency signals. Three methods of forming the parametric image are presented. As a second step, the local tissue-specific attenuation coefficients are estimated in small regions of the obtained parametric image. The method has been tested on synthetic radiofrequency data and on radiofrequency data recorded fr

Czech name

Odhad ultrazvukového koeficientu útlumu pomocí zpracování v oblasti log-spektra

Czech description

Ultrasound attenuation coefficient is an important diagnostic parameter in medical ultrasonography. Furthermore, it is a parameter of a component related to the attenuation process of the space-variant point spread function, which can be used to improvethe spatial resolution of ultrasound images through deconvolution. In this paper, a recently published approach to the estimation of the ultrasound attenuation coefficient from B-scan radiofrequency data is extended and explained in a detail. First, a paarametric image of the mean attenuation coefficients between the probe and a given pixel position is computed by applying linear regression to log-spectra of short segments of radiofrequency signals. Three methods of forming the parametric image are presented. As a second step, the local tissue-specific attenuation coefficients are estimated in small regions of the obtained parametric image. The method has been tested on synthetic radiofrequency data and on radiofrequency data recorded fr

Type

D - Article in proceedings

CEP classification

JD - Use of computers, robotics and its application

OECD FORD branch

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Project

<a href="/en/project/GA102%2F02%2F0890" target="_blank" >GA102/02/0890: Analysis od medical ultrasonographic data aimed at 3D imaging in cardiology</a><br>

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

Article name in the collection

Proceedings of the 26th Annual Int. Conf. of the IEEE EMBS

ISBN

0-7803-8440-7

ISSN

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e-ISSN

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Number of pages

4

Pages from-to

1411-1414

Publisher name

IEEE inc.

Place of publication

USA

Event location

San Francisco

Event date

Sep 1, 2004

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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