Title :
Two-dimensional ultrasonic strain rate measurement of the human heart in vivo
Author :
D´hooge, Jan ; Konofagou, Elisa ; Jamal, Fadi ; Heimdal, Andreas ; Barrios, Laurentino ; Bijnens, Bart ; Thoen, Jan ; Van de Werf, Frans ; Sutherland, George ; Suetens, Paul
Author_Institution :
Dept. of Electr. Eng., Katholieke Univ., Leuven, Belgium
Abstract :
A study is presented in which the feasibility of two-dimensional strain rate estimation of the human heart in vivo has been demonstrated. To do this, ultrasonic B-mode data were captured at a high temporal resolution of 3.8 ms and processed off-line. The motion of the RF 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; echocardiography; image resolution; medical image processing; motion estimation; strain measurement; 3.8 ms; RF signal patterns; axial motion; high temporal resolution; human heart; lateral motion; medical diagnostic imaging; off-line processing; strain rate estimation; two-dimensional ultrasonic strain rate measurement; ultrasonic B-mode data; Anthropometry; Capacitive sensors; Heart; Humans; In vivo; Motion estimation; Signal resolution; Strain measurement; Tracking; Ultrasonic variables measurement; Adult; Biomechanics; Echocardiography, Doppler; Feasibility Studies; Humans;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
