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• W4321205436 abstract "Cardiac cine magnetic resonance (CCMR) imaging plays an important role in the clinical cardiovascular disease (CVD) examination and evaluation.To accurately reconstruct the displacement field and describe the motion of the left ventricular myocardium (LVM), this study proposes and tests a new approach for tracking myocardial motion of the left ventricle based on a biomechanical model.CCMR imaging data acquired from 103 patients are enrolled, including two simulated and 101 clinical data. A non-rigid image registration method with a combination of a thin-plate spline function and random sample consensus is used to recover the observed displacement field of LVM. Next, a biomechanical model and a material matrix are introduced to solve the dense displacement field of LVM using a finite element framework. Then, the tracking precision and error of results for the two groups are analyzed.Displacement results of the simulated data show correlation coefficient≥0.876 and mean square error≤0.159, while displacement results of the clinical data show Dice≥0.97 and mean contour distance≤0.464. Additionally, the strain results show correlation coefficient≥0.717.This study demonstrates that the proposed new method enables to accurately track the motion of the LVM and evaluate strain, which has clinical auxiliary value in the diagnosis of CVD." @default.
• W4321205436 created "2023-02-18" @default.
• W4321205436 creator A5025456153 @default.
• W4321205436 creator A5051441217 @default.
• W4321205436 date "2023-05-11" @default.
• W4321205436 modified "2023-09-27" @default.
• W4321205436 title "Left ventricular myocardial motion tracking in cardiac cine magnetic resonance images based on a biomechanical model" @default.
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• W4321205436 doi "https://doi.org/10.3233/xst-221331" @default.
• W4321205436 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/36806540" @default.
• W4321205436 hasPublicationYear "2023" @default.
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