Two dimensional ultrasonic beam distortion in the breast: in vivo measurements and effects.

Published

Journal Article

Two dimensional arrival time data was obtained for the propagation of ultrasound across the breasts of 7 female volunteers. These profiles were extracted through the use of cross-correlation measurements and a simulated annealing process that maintained phase closure while aligning the data. The phase aberration measured in two dimensions had a larger magnitude than previously reported phase aberration measured in one dimension in the breast. A point spread function generation computer program was used to demonstrate the system response degrading effects of the measured phase aberration and the usefulness of current one dimensional phase aberration correction techniques. The results indicate that two dimensional correction algorithms are necessary to restore the system performance losses due to phase aberration.

Full Text

Duke Authors

Cited Authors

  • Freiburger, PD; Sullivan, DC; LeBlanc, BH; Smith, SW; Trahey, GE

Published Date

  • October 1992

Published In

Volume / Issue

  • 14 / 4

Start / End Page

  • 398 - 414

PubMed ID

  • 1296342

Pubmed Central ID

  • 1296342

International Standard Serial Number (ISSN)

  • 0161-7346

Digital Object Identifier (DOI)

  • 10.1177/016173469201400406

Language

  • eng

Conference Location

  • England