Improved scatterer property estimates from ultrasound backscatter using gate-edge correction and a Pseudo-Welch technique

Goutam Ghoshal, Michael L. Oelze

Research output: Contribution to journalArticle

Abstract

Quantitative ultrasound (QUS) techniques have been widely used to estimate the size, shape and mechanical properties of tissue microstructure for specified regions of interest (ROIs). For conventional methods, an ROI size of 4 to 5 beamwidths laterally and 15 to 20 spatial pulse lengths axially has been suggested to estimate accuracy and precision better than 10% and 5%, respectively. A new method is developed to decrease the standard deviation of the quantitative ultrasound parameter estimate in terms of effective scatterer diameter (ESD) for small ROIs. The new method yielded estimates of the ESD within 10% of actual values at an ROI size of five spatial pulse lengths axially by two beamwidths laterally, and the estimates from all the ROIs had a standard deviation of 15% of the mean value. Such accuracy and precision cannot be achieved using conventional techniques with similar ROI sizes.

Original languageEnglish (US)
Article number5610568
Pages (from-to)2828-2832
Number of pages5
JournalIEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
Volume57
Issue number12
DOIs
StatePublished - Dec 2010

ASJC Scopus subject areas

  • Instrumentation
  • Acoustics and Ultrasonics
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Improved scatterer property estimates from ultrasound backscatter using gate-edge correction and a Pseudo-Welch technique'. Together they form a unique fingerprint.

  • Cite this