【摘 要】
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Background, Motivation and Objective Two dimensional (2D) speckle tracking echocardiography (STE) has emerged as a promising imaging modality that allows left ventricular (LV) function estimation by c
【机 构】
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Department of Biomedical Engineering, Technion-Israel Institute of Technology, Haifa, Israel
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Background, Motivation and Objective Two dimensional (2D) speckle tracking echocardiography (STE) has emerged as a promising imaging modality that allows left ventricular (LV) function estimation by calculating global and regional strains. The accuracy of this modality is affected by speckle decorrelation noise, which is usually addressed by a post-processing regularization or smoothing. Moreover, the software products offered by the various vendors produce different results for the same clip/patient. These issues limit the clinical acceptance of 2D STE. Here a new algorithm is proposed, termed "error-dependent weighted speckle tracking algorithm" (EWST), which allows a more accurate estimation of strain values by solving an optimization problem, to improve tracking of tissue speckles.
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