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C- and D-weighted ultrasonic imaging using the translating apertures algorithm.

Publication ,  Journal Article
Walker, WF
Published in: Ieee Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
March 2001

Conventional ultrasonic imaging systems depict tissue backscatter, that is, the ultrasonic energy reflected directly back toward the transmitter. Although diagnostically useful, these systems fail to exploit the information available in components of the sound field scattered in other directions. This paper describes a new method of imaging this angular scatter. First, the translating apertures algorithm (TAA) is used to acquire data at two scattering angles. Then, these data are processed to yield an image of the common scattering with angle and the differential scattering with angle. This paper explores the potential of these common-weighted (c-weighted) and difference-weighted (d-weighted) images using theory and simulations. In addition, it describes and analyzes the performance of the TAA when it is applied using multiple receive elements. Analysis is presented that shows that, in Rayleigh scattering environments, c- and d-weighted images depict compressibility and density variations, respectively. A simulated image and accompanying analysis are presented that show the potential of these techniques to improve soft tissue contrast and to increase the detectability of microcalcifications. A comparison with previous angular scatter measurement techniques shows that use of the TAA significantly reduces statistical variability in measured angular scatter profiles. Spatially localized, statistically reliable angular scatter measurements will enable a broad range of angular scatter imaging techniques. C- and d-weighted imaging may ultimately be applied clinically to identify calcification in atherosclerotic plaques and breast tumors.

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Published In

Ieee Transactions on Ultrasonics, Ferroelectrics, and Frequency Control

DOI

EISSN

1525-8955

ISSN

0885-3010

Publication Date

March 2001

Volume

48

Issue

2

Start / End Page

452 / 461

Related Subject Headings

  • Ultrasonography, Mammary
  • Ultrasonography
  • Scattering, Radiation
  • Image Processing, Computer-Assisted
  • Humans
  • Female
  • Calcinosis
  • Breast Neoplasms
  • Biomedical Engineering
  • Algorithms
 

Citation

APA
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ICMJE
MLA
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Walker, W. F. (2001). C- and D-weighted ultrasonic imaging using the translating apertures algorithm. Ieee Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 48(2), 452–461. https://doi.org/10.1109/58.911728
Walker, W. F. “C- and D-weighted ultrasonic imaging using the translating apertures algorithm.Ieee Transactions on Ultrasonics, Ferroelectrics, and Frequency Control 48, no. 2 (March 2001): 452–61. https://doi.org/10.1109/58.911728.
Walker WF. C- and D-weighted ultrasonic imaging using the translating apertures algorithm. Ieee Transactions on Ultrasonics, Ferroelectrics, and Frequency Control. 2001 Mar;48(2):452–61.
Walker, W. F. “C- and D-weighted ultrasonic imaging using the translating apertures algorithm.Ieee Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, vol. 48, no. 2, Mar. 2001, pp. 452–61. Epmc, doi:10.1109/58.911728.
Walker WF. C- and D-weighted ultrasonic imaging using the translating apertures algorithm. Ieee Transactions on Ultrasonics, Ferroelectrics, and Frequency Control. 2001 Mar;48(2):452–461.

Published In

Ieee Transactions on Ultrasonics, Ferroelectrics, and Frequency Control

DOI

EISSN

1525-8955

ISSN

0885-3010

Publication Date

March 2001

Volume

48

Issue

2

Start / End Page

452 / 461

Related Subject Headings

  • Ultrasonography, Mammary
  • Ultrasonography
  • Scattering, Radiation
  • Image Processing, Computer-Assisted
  • Humans
  • Female
  • Calcinosis
  • Breast Neoplasms
  • Biomedical Engineering
  • Algorithms