Transcostal imaging with large coherent apertures: Ex vivo studies

Author

Jakovljevic, Mirko ; Kumar, Sudhakar ; Kuo, Lily ; Trahey, Gregg E.

Author_Institution

Dept. of Biomed. Eng., Duke Univ., Durham, NC, USA

fYear

2014

fDate

3-6 Sept. 2014

Firstpage

1698

Lastpage

1701

Abstract

In order to implement and evaluate a basic blocked-element detection and compensation algorithm on large arrays we acquired large synthetic 2-D aperture data sets on canine ribs ex vivo. Elements that were blocked by the ribs exhibited significantly lower values for the signal amplitude and nearest-neighbor cross-correlation than the remaining elements on the aperture. Turning off these elements retroactively in transmit and receive synthetic apertures significantly reduced clutter magnitude in the resulting B-mode images. Measured point spread functions showed now significant difference after blocked-element compensation was applied.

Keywords

biomedical ultrasonics; bone; B-mode images; basic blocked-element detection; canine ribs; clutter magnitude; compensation algorithm; ex vivo studies; large arrays; large coherent apertures; large synthetic 2-D aperture data sets; nearest-neighbor cross-correlation; receive synthetic apertures; signal amplitude; transcostal imaging; transmit synthetic apertures; Apertures; Arrays; Clutter; Image quality; Ribs; Transducers; Ultrasonic imaging;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium (IUS), 2014 IEEE International

Conference_Location

Chicago, IL

Type

conf

DOI

10.1109/ULTSYM.2014.0421

Filename

6932373