Method for estimating total attenuation from a spatial map of attenuation slope for quantitative ultrasound imaging

Alexander D. Pawlicki, William D. O'Brien

Research output: Contribution to journalArticlepeer-review

Abstract

Estimating total ultrasound attenuation from backscatter data is essential in the field of quantitative ultrasound (QUS) because of the need to compensate for attenuation when estimating the backscatter coefficient and QUS parameters. This work uses a reference phantom method of attenuation estimation to create a spatial map of attenuation slope (AS) from backscatter radio-frequency (RF) data of three phantoms and a rat mammary adenocarcinoma tumor (MAT). The attenuation maps show changes in attenuation between different regions of the phantoms and the MAT tumor. Analyses of the attenuation maps of the phantoms suggest that the AS estimates are in good quantitative agreement with the known values for the phantoms. Furthermore, estimates of total attenuation from the attenuation maps are likewise in good quantitative agreement with known values.

Original languageEnglish (US)
Pages (from-to)162-172
Number of pages11
JournalUltrasonic Imaging
Volume35
Issue number2
DOIs
StatePublished - Apr 2013
Externally publishedYes

Keywords

  • attenuation
  • attenuation slope
  • parametric image
  • quantitative ultrasound imaging
  • total attenuation
  • ultrasound

ASJC Scopus subject areas

  • Radiological and Ultrasound Technology
  • Radiology Nuclear Medicine and imaging

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