Detail publikace

Ultrasound Attenuation Imaging

JIŘÍK, R. TAXT, T. JAN, J.

Originální název

Ultrasound Attenuation Imaging

Typ

článek v časopise - ostatní, Jost

Jazyk

angličtina

Originální abstrakt

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. Furthermore, 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 a tissue-mimicking phantom, and on clinical images of liver and thigh showed relatively good agreement of the estimated attenuation coefficients with the known reference values

Klíčová slova

ultrasound imaging, parametric imaging, estimation of attenuation coefficient, deconvolution of ultrasonographic images

Autoři

JIŘÍK, R.; TAXT, T.; JAN, J.

Rok RIV

2004

Vydáno

1. 1. 2004

Nakladatel

Slovak Academy of Science

Místo

Bratislava, Slovakia

ISSN

1335-3632

Periodikum

Journal of Electrical Engineering

Ročník

55

Číslo

7-8

Stát

Slovenská republika

Strany od

180

Strany do

187

Strany počet

8

BibTex

@article{BUT45666,
  author="Radovan {Jiřík} and Torfinn {Taxt} and Jiří {Jan}",
  title="Ultrasound Attenuation Imaging",
  journal="Journal of Electrical Engineering
",
  year="2004",
  volume="55",
  number="7-8",
  pages="8",
  issn="1335-3632"
}