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2010

Two-Dimensional Intraventricular Flow Mapping by Digital Processing Conventional Color-Doppler Echocardiography Images

9 years 5 months ago
Two-Dimensional Intraventricular Flow Mapping by Digital Processing Conventional Color-Doppler Echocardiography Images
Abstract--Doppler echocardiography remains the most extended clinical modality for the evaluation of left ventricular (LV) function. Current Doppler ultrasound methods, however, are limited to the representation of a single flow velocity component. We thus developed a novel technique to construct 2D time-resolved (2D+t) LV velocity fields from conventional transthoracic clinical acquisitions. Combining color-Doppler velocities with LV wall positions, the cross-beam blood velocities were calculated using the continuity equation under a planar flow assumption. To validate the algorithm, 2D Doppler flow mapping and laser particle image velocimetry (PIV) measurements were carried out in an atrio-ventricular duplicator. Phase-contrast magnetic resonance (MR) acquisitions were used to measure in vivo the error due to the 2D flow assumption and to potential scan-plane misalignment. Finally, the applicability of the Doppler technique was tested in the clinical setting. In vitro experiments dem...
Damien Garcia, Juan C. del Álamo, David Tan
Added 22 May 2011
Updated 22 May 2011
Type Journal
Year 2010
Where TMI
Authors Damien Garcia, Juan C. del Álamo, David Tanné, Raquel Yotti, Cristina Cortina, Eric Bertrand, José Carlos Antoranz, Esther Pérez-David, Régis Rieu, Francisco Fernandez-Aviles, Javier Bermejo
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