Phase aberration correction using echo signals from moving targets. II: Experimental system and results.

Journal Article (Journal Article)

A method for correcting errors due to near-field tissue inhomogeneities in phased array ultrasound images is evaluated experimentally. The method uses the brightness of a moving speckle-generating target, such as blood, as a quality factor to correct for unknown phase aberrations. A real time experimental system utilizing the technique has been constructed and is described. Initial results from in vitro studies using a flow phantom are compared to theoretical predictions. The results indicate that the technique can provide significant improvements in image quality when imaging through aberrating media, and may find application in clinical imaging through skull and fatty layers.

Full Text

Duke Authors

Cited Authors

  • Bohs, LN; Zhao, D; Trahey, GE

Published Date

  • April 1992

Published In

Volume / Issue

  • 14 / 2

Start / End Page

  • 111 - 120

PubMed ID

  • 1604753

Electronic International Standard Serial Number (EISSN)

  • 1096-0910

International Standard Serial Number (ISSN)

  • 0161-7346

Digital Object Identifier (DOI)

  • 10.1177/016173469201400202


  • eng