Key result
Automated quantification of flow propagation features classified normal and diastolic dysfunction patients with sensitivity and specificity greater than 80%.
Why the study?
Does automated quantification of color Doppler M-mode flow propagation features accurately classify diastolic dysfunction?
Observational (n=20)
Does automated quantification of color Doppler M-mode flow propagation features accurately classify diastolic dysfunction?
Automated analysis of color Doppler M-mode echocardiography can accurately classify diastolic dysfunction, potentially improving the routine assessment of left ventricular filling.
May aid diastolic dysfunction classification; hypothesis-generating and requires prospective validation before clinical use.
Color Doppler M-mode echocardiographic imaging has been shown to provide useful information in the evaluation of left ventricular diastolic filling and function. However, descriptors of the spatiotemporal velocity inflow pattern do not take advantage of the full digital velocity map and are not available in an automated fashion. The purpose of this study was to automate the quantification of flow propagation features and evaluate their ability to assess diastolic filling abnormalities. Isovelocity contouring and gradient analysis were applied to identify features of the early filling wave. These feature parameters were compared in normal and diastolic dysfunction patient groups (N=20). Several features allowed classification of the two patient groups with sensitivity and specificity greater than 80%. This automated process may allow these features to be obtained on a regular basis and provide information for diagnosis and assessment of diastolic dysfunction.
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Greenberg et al. (2002) conducted an observational in Diastolic dysfunction (n=20). Automated quantification of flow propagation features vs. Normal patients was evaluated on Classification of normal and diastolic dysfunction patient groups. Automated quantification of flow propagation features classified normal and diastolic dysfunction patients with sensitivity and specificity greater than 80%.
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