Publication detail

Ultrasound Attenuation Imaging

JIŘÍK, R. TAXT, T. JAN, J.

Original Title

Ultrasound Attenuation Imaging

Czech Title

Zobrazování útlumu ultrazvuku

English Title

Ultrasound Attenuation Imaging

Type

journal article

Language

en

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

Czech 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

RIV year

2004

Released

01.01.2004

Publisher

Slovak Academy of Science

Location

Bratislava, Slovakia

Pages from

180

Pages to

187

Pages count

8

BibTex


@article{BUT45666,
  author="Radovan {Jiřík} and Torfinn {Taxt} and Jiří {Jan}",
  title="Ultrasound Attenuation Imaging",
  annote="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",
  address="Slovak Academy of Science",
  chapter="45666",
  institution="Slovak Academy of Science",
  journal="Journal of Electrical Engineering
",
  number="7-8",
  volume="55",
  year="2004",
  month="january",
  pages="180",
  publisher="Slovak Academy of Science",
  type="journal article"
}