Cardiac Kinetic Energy and Viscous Dissipation Rate From Radial Flow Data
In: Frontiers in Physiology, Jg. 12 (2021-09-01)
Online
academicJournal
Zugriff:
Recent studies have correlated kinetic energy (KE) and viscous dissipation rate (VDR) in the left ventricle (LV) with heart health. These studies have relied on 4D-flow imaging or computational fluid dynamics modeling, which are able to measure, or compute, all 3 components (3C) of the blood flow velocity in 3 dimensional (3D) space. This richness of data is difficult to acquire clinically. Alternatively, color Doppler echocardiography (CDE) is more widespread clinically, but only measures a single radial component of velocity and typically only over a planar section. Because of this limitation, prior CDE-based studies have first reconstructed a second component of velocity in the measurement plane prior to evaluating VDR or KE. Herein, we propose 1C-based surrogates of KE and VDR that can be derived directly from the radial component of the flow velocity in the LV. Our results demonstrate that the proposed 1C-based surrogates of KE and VDR are generally as well-correlated with the true KE and VDR values as surrogates that use reconstructed 2C flow data. Moreover, the correlation of these 1C-based surrogates with the true values indicate that CDE (3D in particular) may be useful in evaluating these metrics in practice.
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Cardiac Kinetic Energy and Viscous Dissipation Rate From Radial Flow Data
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Autor/in / Beteiligte Person: | Frank, Sarah ; Lee, Junsung ; Lantz, Jonas ; Ebbers, Tino ; Shadden, Shawn C. |
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Zeitschrift: | Frontiers in Physiology, Jg. 12 (2021-09-01) |
Veröffentlichung: | Frontiers Media S.A., 2021 |
Medientyp: | academicJournal |
ISSN: | 1664-042X (print) |
DOI: | 10.3389/fphys.2021.725104 |
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