Two-Dimensional Ultrasonic Strain Rate Measurement of the Human Heart in Vivo
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.
KeywordsRadio Frequency Lateral Motion Image Line Regional Myocardial Function Axial Strain Rate
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- 2.J. D'hooge, A. Heimdal, F. Jamal, T. Kukulski, B. Bijnens, F. Rademakers, L. Hatle, P. Suetens, and G.R. Sutherland. Regional strain and strain rate measurements by cardiac ultrasound: principles, implementation and limitations. European Journal of Echocardiography, 1(3):154–170, 2000.CrossRefGoogle Scholar
- 3.A. Heimdal, J. D'hooge, B. Bijnens, G.R. Sutherland, and H. Torp. In vitro validation of in-plane strain rate imaging. a new ultrasound technique for evaluating regional myocardial deformation based on tissue doppler imaging. (abstract). Echocardiography, 18(8):S40, 1998.Google Scholar
- 4.S. Urheim, T. Edvardsen, H. Torp, B. Angelsen, and O. Smiseth. Myocardial strain by doppler echocardiography. validation of a new method to quantify regional myocardial function. Circulation, 102:1158–1164, 2000.Google Scholar
- 5.P.L. Castro, N.L. Greenberg, J. Drinko, M.J. Garcia, and J.D. Thomas. Potential pitfalls of strain rate imaging: angle dependency. Biomedical sciences instrumentation, 36:197–202, 2000.Google Scholar
- 9.J.G. Proakis and D.G. Manolakis. Digital signal processing: principles, algorithms and applications. Prentice-Hall International, 1996.Google Scholar
- 11.T. Varghese, J. Ophir, and I. Cespedes. Noise reduction in elastography using temporal stretching with multicompression averaging. Ultrasound in Medicine & Biology, 22:1042–1053, 1996.Google Scholar
- 12.J.U. Voigt, M.F. Arnold, M. Karlsson, L. Hubbert, T. Kukulski, L. Hatle, and G.R. Sutherland. Assessment of regional longitudinal myocardial strain rate derived from doppler myocardial imaging indexes in normal and infarcted myocardium. The Journal of the American Society of Echocardiography, 13(6):588–598, 2000.CrossRefGoogle Scholar
- 13.M. Kowalski, T. Kukulski, F. Jamal, J. D'hooge, F. Weidemann, F. Rademakers, B. Bijnens, L. Hatle, and G.R. Sutherland. Can natural strain and strain rate quantify regional myocardial deformation? a study in healthy subjects. Ultrasound in Medicine & Biology, 27(8):1087–1097, 2001.CrossRefGoogle Scholar
- 14.F.E. Rademakers, M.B. Buchalter, W.J. Rogers, E.A. Zerhouni, J.L. Weisfeldt, M.L. Weiss, and B. Shapiro. Dissociation between left ventricular untwisting and filling. accentuation by catecholamines. Circulation, 85(4):1572–1581, 1992.Google Scholar
- 16.J.U. Voigt, G. Lindenmeier, D. Werner, F.A. Flachskampf, U. Nixdor., L. Hatle, G.R. Sutherland, and W.G. Daniel. Strain rate imaging for the assessment of preload dependent changes in regional left ventricular diastolic longitudinal function. Journal of the American Society of Echocardiography, page (In Press), 2001.Google Scholar