Publications by authors named "Elodie Cao"
Article Synopsis
- High-intensity focused ultrasound (HIFU) is a new treatment for cardiac arrhythmias that creates lesions deep within heart tissue.
- This study uses numerical modeling to simulate the effects of HIFU on heart models that can move and deform, focusing on two key areas: the atrioventricular node and ventricular apex.
- Results show that motion and deformation significantly affect the treatment duration and lesion characteristics, indicating the need for precise modeling in developing effective HIFU strategies.
Spectral Analysis of Tissue Displacement for Cardiac Activation Mapping: Ex Vivo Working Heart and In Vivo Study.
IEEE Trans Ultrason Ferroelectr Freq Control
March 2022
Characterizing myocardial activation is of major interest for understanding the underlying mechanism of cardiac arrhythmias. Electromechanical wave imaging (EWI) is an ultrafast ultrasound-based method used to map the propagation of the local contraction triggered by electrical activation of the heart. This study introduces a novel way to characterize cardiac activation based on the time evolution of the instantaneous frequency content of the cardiac tissue displacement curves.
View Article and Find Full Text PDFDifferentiation between epicardial and endocardial ventricular activation remains a challenge despite the latest technologies available. The aim of the present study was to develop a new tool method, based on electromechanical wave imaging (EWI), to improve arrhythmogenic substrate activation analysis. Experiments were conducted on left ventricles (LVs) of four isolated working mode swine hearts.
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