Identification and impact of blocked elements in 1-D and 2-D arrays


Journal Article

In an attempt to characterize the signals on the blocked elements and to assess the image degradation they cause we collected the individual-channel signals from a clinical matrix array on a phantom through a layer of absorbing rubber and on the human liver intercostally. The signal amplitude and nearest-neighbor normalized cross-correlation exhibited significantly lower values for the blocked elements than for the remaining elements on the aperture. The channel-signals were summed coherently in the elevation dimension to create a synthetic receive 1-D aperture data-set. B-mode images of liver vasculature that were created for a growing synthetic 1-D aperture indicate that beamforming with the blocked elements turned off can reduce noise and improve visibility of targets. © 2013 IEEE.

Full Text

Duke Authors

Cited Authors

  • Jakovljevic, M; Dahl, J; Trahey, GE

Published Date

  • December 1, 2013

Published In

Start / End Page

  • 1296 - 1299

Electronic International Standard Serial Number (EISSN)

  • 1948-5727

International Standard Serial Number (ISSN)

  • 1948-5719

Digital Object Identifier (DOI)

  • 10.1109/ULTSYM.2013.0331

Citation Source

  • Scopus