Continuous 3D Myocardial Motion Tracking via Echocardiography

• URL: http://arxiv.org/abs/2310.02792v2
• Date: Thu, 27 Jun 2024 07:29:09 GMT
• Title: Continuous 3D Myocardial Motion Tracking via Echocardiography
• Authors: Chengkang Shen, Hao Zhu, You Zhou, Yu Liu, Si Yi, Lili Dong, Weipeng Zhao, David J. Brady, Xun Cao, Zhan Ma, Yi Lin,
• Abstract summary: Myocardial motion tracking is an essential clinical tool in the prevention and detection of cardiovascular diseases. Current techniques suffer from incomplete and inaccurate motion estimation of the myocardium in both spatial and temporal dimensions. This paper introduces the Neural Cardiac Motion Field (NeuralCMF) to model the 3D structure and the comprehensive 6D forward/backward motion of the heart.
• Score: 30.19879953016694
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Abstract: Myocardial motion tracking stands as an essential clinical tool in the prevention and detection of cardiovascular diseases (CVDs), the foremost cause of death globally. However, current techniques suffer from incomplete and inaccurate motion estimation of the myocardium in both spatial and temporal dimensions, hindering the early identification of myocardial dysfunction. To address these challenges, this paper introduces the Neural Cardiac Motion Field (NeuralCMF). NeuralCMF leverages implicit neural representation (INR) to model the 3D structure and the comprehensive 6D forward/backward motion of the heart. This method surpasses pixel-wise limitations by offering the capability to continuously query the precise shape and motion of the myocardium at any specific point throughout the cardiac cycle, enhancing the detailed analysis of cardiac dynamics beyond traditional speckle tracking. Notably, NeuralCMF operates without the need for paired datasets, and its optimization is self-supervised through the physics knowledge priors in both space and time dimensions, ensuring compatibility with both 2D and 3D echocardiogram video inputs. Experimental validations across three representative datasets support the robustness and innovative nature of the NeuralCMF, marking significant advantages over existing state-of-the-art methods in cardiac imaging and motion tracking.

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