Title :
Two-dimensional myocardial strain rate estimation using "snakes"
Author :
Hooge, J.D. ; Bijnens, B. ; Kowalski, M. ; Barrios, L. ; Thoen, J. ; van de Werf, F. ; Sutherland, G.R. ; Suetens, P.
Author_Institution :
Dept. of Electr. Eng., Katholieke Univ., Leuven, Belgium
Abstract :
In this study, the feasibility of two-dimensional strain rate estimation of the human heart in vivo is shown. To do this, ultrasonic B-mode data were captured at a high temporal resolution of 3.7 ms and processed off-line. The motion of the radio-frequency signal patterns within the two-dimensional sector image was tracked and used as the basis for strain rate estimation. Both axial and lateral motion and strain rate estimates showed a good agreement with the results obtained by more established, one-dimensional techniques
Keywords :
biomechanics; biomedical ultrasonics; cardiology; axial motion; heart; lateral motion; myocardial strain rate estimation; temporal resolution; two-dimensional myocardial strain rate; two-dimensional sector image; ultrasonic B-mode data; Capacitive sensors; Cardiology; Heart; In vivo; Motion estimation; Myocardium; Radio frequency; Tracking; Ultrasonic imaging; Ultrasonic variables measurement;
Conference_Titel :
Ultrasonics Symposium, 2001 IEEE
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-7177-1
DOI :
10.1109/ULTSYM.2001.991928
