Key result
Using mask information as an additional penalty in elastic image registration for 2D speckle tracking echocardiography yields accuracy gains that outweigh potential losses from poor segmentation.
Why the study?
Two-dimensional speckle tracking echocardiography requires further developments to improve repeatability and reliability, and few works have incorporated left ventricle segmentation to improve displacement and strain estimation.
Does the use of mask information as an additional penalty in elastic image registration improve the accuracy of displacements and strain estimation in 2D speckle tracking echocardiography?
Does the use of mask information as an additional penalty in elastic image registration improve the accuracy of displacements and strain estimation in 2D speckle tracking echocardiography?
Incorporating segmentation mask information as a penalty in elastic image registration can improve the accuracy of 2D speckle tracking echocardiography.
Hypothesis-generating in animal models; leaves open clinical utility of mask-penalized registration for 2D speckle tracking.
Although the two dimensional Speckle Tracking Echocardiography has gained a strong position among medical diagnostic techniques in cardiology, it still requires further developments to improve its repeatability and reliability. Few works have attempted to incorporate the left ventricle segmentation results in the process of displacements and strain estimation to improve its performance. We proposed the use of mask information as an additional penalty in the elastic image registration based displacements estimation. This approach was studied using a short axis view synthetic echocardiographic data, segmented using an active contour method. The obtained masks were distorted to a different degree, using different methods to assess the influence of the segmentation quality on the displacements and strain estimation process. The results of displacements and circumferential strain estimations show, that even though the method is dependent on the mask quality, the potential loss in accuracy due to the poor segmentation quality is much lower than the potential accuracy gain in cases where the segmentation performs well.
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Wilczewska et al. (2022) studied Echocardiography. Segmentation enhanced elastic image registration was evaluated on Displacements and circumferential strain estimations. Using mask information as an additional penalty in elastic image registration for 2D speckle tracking echocardiography yields accuracy gains that outweigh potential losses from poor segmentation.
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