Topology of blood transport in the human left ventricle by novel processing of Doppler echocardiography.
cross_sectional · Level IV
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- Record sourced from PubMed, PMID 23817765.
- Also identified by DOI 10.1007/s10439-013-0853-z and PMC identifier 3823764.
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Abstract
Novel processing of Doppler-echocardiography data was used to study blood transport in the left ventricle (LV) of six patients with dilated cardiomyopathy and six healthy volunteers. Bi-directional velocity field maps in the apical long axis of the LV were reconstructed from color-Doppler echocardiography. Resulting velocity field data were used to perform trajectory-based computation of Lagrangian coherent structures (LCS). LCS were shown to reveal the boundaries of blood injected and ejected from the heart over multiple beats. This enabled qualitative and quantitative assessments of blood transport patterns and residence times in the LV. Quantitative assessments of stasis in the LV are reported, as well as characterization of LV vortex formations from E-wave and A-wave filling.
Medical subject headings
- Cardiomyopathy, Dilated
- Heart Ventricles
- Ventricular Function