Frame-to-frame statistics of real-time strain images

Author

Pesavento, A. ; Lorenz, A. ; Ermert, H. ; Sommerfeld, H. ; Garcia-Schürmann, M. ; Senge, Th. ; Philippou, S.

Author_Institution

Lorenz & Pesavento IT, Bochum, Germany

Volume

2

fYear

2000

fDate

36800

Firstpage

1809

Abstract

Assesses the second order statistical properties of strain images with respect to the temporal direction. Successively acquired strain images in a real-time or similar off-line strain imaging system are correlated. This can be described by a covariance function, which is investigated in this paper by simulations. We determine how the statistical properties affect the choice of the frame-rate in a real-time strain imaging system and furthermore the effect of temporal filtering of strain images is discussed. The first in vivo real-time strain images of the prostate have been presented

Keywords

acoustic correlation; biological organs; biomechanics; biomedical ultrasonics; real-time systems; statistical analysis; covariance function; frame-rate; frame-to-frame statistics; in vivo; off-line strain imaging system; prostate; real-time strain images; second order statistical properties; simulations; temporal direction; temporal filtering; Capacitive sensors; Data acquisition; Decorrelation; Filtering; Image coding; Pathology; Phase estimation; Pixel; Real time systems; Statistics;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 2000 IEEE

Conference_Location

San Juan

ISSN

1051-0117

Print_ISBN

0-7803-6365-5

Type

conf

DOI

10.1109/ULTSYM.2000.921674

Filename

921674