Phase aberration measurement and correction in medical ultrasound


Journal Article

An apparatus to measure time-of-flight profiles in living tissues and an experimental phased-array imaging system capable of correcting unknown phase errors induced by inhomogeneities in the acoustic velocities in tissue are presented. The procedure utilizes regional target brightness to adjust the phasing of individual elements iteratively. The results of in vivo measurements of phase-error profiles in abdominal, breast and transcranial imaging applications are given. The success of the phase-correction system in restoring the quality of images degraded by these errors is demonstrated.

Duke Authors

Cited Authors

  • Trahey, GE

Published Date

  • December 1, 1989

Published In

Volume / Issue

  • 11 pt 2 /

Start / End Page

  • 397 - 399

International Standard Serial Number (ISSN)

  • 0589-1019

Citation Source

  • Scopus