Abstract
Accurate quantification of left ventricular function is primordial in clinical decision making and follow-up assessment in patients with cardiovascular disease. Its ability to derive real-time noninvasive information makes Doppler ultrasound the cornerstone technique for cardiovascular diagnosis [Thomas, 2006]. Current color-Doppler ultrasound, however, is limited to the only components of the actual three-dimensional velocity field projected along the direction of the ultrasound beam. Computational [Pedrizzetti, 2005] and in vitro [Kheradvar, 2007] studies have suggested that more complete clinical diagnostic information could be derived from the full-field characterization of intraventricular flow. To date, the detailed visualization of full-flow in the left ventricle is only accessible with magnetic resonance velocimetry. The objective of our study was thus to develop and validate an original algorithm to construct a twodimensional time-resolved (2D+T) left ventricular flow field from conventional echocardiographic acquisitions.
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