Publication result detail

Ultrasound Attenuation Imaging

JIŘÍK, R.; TAXT, T.; JAN, J.

Original Title

Ultrasound Attenuation Imaging

English Title

Ultrasound Attenuation Imaging

Type

Peer-reviewed article not indexed in WoS or Scopus

Original Abstract

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

English abstract

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

Keywords

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

Key words in English

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

Authors

JIŘÍK, R.; TAXT, T.; JAN, J.

RIV year

2011

Released

01.01.2004

Publisher

Slovak Academy of Science

Location

Bratislava, Slovakia

ISBN

1335-3632

Periodical

Journal of Electrical Engineering-Elektrotechnicky Casopis

Volume

55

Number

7-8

State

Slovak Republic

Pages from

180

Pages count

8

BibTex

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