Quantification of ultrasonic anisotropy of scattering from myocardium in vitro and in vivo

Author

Wickline, Samuel A. ; Recchia, Dino ; Shepard, Richard K. ; Verdonk, Edward D. ; Miller, James G.

Author_Institution

Sch. of Med. & Dept. of Phys., Washington Univ., St. Louis, MO, USA

fYear

1992

Firstpage

1083

Abstract

The highly ordered and complex arrangement of cardiac myofibers produces an angle dependence or anisotropy of ultrasonic scattering. The extent to which the magnitude of anisotropy may depend on the particular view used for insonification of the heart has not been determined. The transmural dependence of integrated backscatter (IB) on myofiber angle in vitro in sections of myocardial tissue is measured from two orthogonal directions. Ultrasonic anisotropy in vivo is characterized in volunteer patients with a method known as lateral gain compensation, which permits compensation for anisotropy in clinical echocardiography images

Keywords

bioacoustics; biomedical ultrasonics; cardiology; ultrasonic scattering; angle dependence; cardiac myofibers; clinical echocardiography images; heart; in vitro; in vivo; insonification; integrated backscatter; lateral gain compensation; myocardial tissue; myocardium; orthogonal directions; transmural dependence; ultrasonic scattering anisotropy quantification; volunteer patients; Acoustic scattering; Anisotropic magnetoresistance; Attenuation; Backscatter; Heart; In vitro; In vivo; Myocardium; Transfer functions; Ultrasonic variables measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 1992. Proceedings., IEEE 1992

Conference_Location

Tucson, AZ

Print_ISBN

0-7803-0562-0

Type

conf

DOI

10.1109/ULTSYM.1992.276009

Filename

276009