The response of regional integrated backscatter levels and regional strain to inotropic stimulation and acute ischemia

Author

D´hooge, J. ; Coenen, S. ; Turschner, O. ; Claus, P. ; McLaughlin, M. ; Mehwald, P. ; Marciniak, M. ; Dommke, C. ; Bijnens, B. ; Sutherland, G.R. ; Suetens, P.

Author_Institution

Dept. of Electr. Eng., Katholieke Univ., Leuven, Belgium

Volume

1

fYear

2004

fDate

23-27 Aug. 2004

Firstpage

614

Abstract

Integrated backscatter (IB) and its cyclic variation (CVIB) are echocardiographic parameters used for myocardial tissue characterization. The purpose of this study was to examine the potential mechanisms underlying the CVIB. The relationship between changes in integrated backscatter and regional myocardial strain was investigated by studying the response of both curves to inotropic stimulation and acute ischemia. Changes in integrated backscatter closely paralleled changes in wall thickening but wall thickening alone could not explain our experimental findings. The results presented in this study further support the hypothesis that changes in tissue reflectivity during the cardiac cycle are induced by regional myocardial 3D strain.

Keywords

backscatter; echocardiography; ultrasonic reflection; ultrasonic scattering; CVIB mechanisms; acute ischemia; backscatter cyclic variation; cardiac cycle tissue reflectivity changes; echocardiographic parameters; inotropic stimulation; myocardial tissue characterization; regional integrated backscatter levels; regional myocardial 3D strain; wall thickening changes; Backscatter; Biomedical imaging; Capacitive sensors; Cardiology; Data mining; Ischemic pain; Myocardium; Physics computing; Protocols; Radio frequency;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 2004 IEEE

ISSN

1051-0117

Print_ISBN

0-7803-8412-1

Type

conf

DOI

10.1109/ULTSYM.2004.1417800

Filename

1417800