Affiliation: Katholieke Universiteit Leuven
- Comparison of time-domain displacement estimators for two-dimensional RF trackingS Langeland
Department of Cardiology, Katholieke Universiteit Leuven, Belgium
Ultrasound Med Biol 29:1177-86. 2003..For smaller window lengths, sum of squared differences was found to be the preferred estimator for 2-D velocity estimation using a 1-D kernel...
- RF-based two-dimensional cardiac strain estimation: a validation study in a tissue-mimicking phantomStian Langeland
Catholic University of Leuven, Leuven, Belgium
IEEE Trans Ultrason Ferroelectr Freq Control 51:1537-46. 2004..95 and r = 0.84), these results were within acceptable limits for clinical applications. The 2D RF-tracking using a 1D kernel thus allows for 2D, and therefore angle-independent, strain estimation...
- Experimental validation of a new ultrasound method for the simultaneous assessment of radial and longitudinal myocardial deformation independent of insonation angleStian Langeland
Cardiac Imaging Research, Department of Cardiology, Catholic University Leuven, Herestraat 49, B 3000 Leuven, Belgium
Circulation 112:2157-62. 2005..To overcome this problem, we have developed a new method for the estimation of strain, independent of angle. The aim of this study was to validate this new methodology in an experimental setting using sonomicrometry...
- Experimental assessment of a new research tool for the estimation of two-dimensional myocardial strainStian Langeland
Cardiac Imaging Research, Dept of Cardiology, Catholic University Leuven, Leuven, Belgium
Ultrasound Med Biol 32:1509-13. 2006..Further improvements are needed for the method to be sufficiently accurate in estimating the deformation perpendicular or close to perpendicular to the ultrasound beam...