Title: Quantitative Analysis on Aortic Regurgitation by Real-time Three-Dimensional Color Doppler Flow Imaging
Abstract:Objective: To evaluate the use of the RT3D CDFI method in the noninvasive assessment of aortic regurgitant jet volume (RJV) and regurgitant jet fraction (RJF) in patients with isolated aortic regurgit...Objective: To evaluate the use of the RT3D CDFI method in the noninvasive assessment of aortic regurgitant jet volume (RJV) and regurgitant jet fraction (RJF) in patients with isolated aortic regurgitation. Methods: In 23 patients with isolated aortic regurgitation, real-time three-dimensional echocardiography studies were performed to obtain LV end-diastolic volumes (LVEDV), end-systolic volumes (LVESV), and RJV, then RJF could be calculated. The regurgitant volume (RV) and regurgitant fraction (RF) calculated by two dimensional pulsed Doppler (2D-PD) method were served as reference values. Results: Aortic RJV measured by the RT3D CDFI method showed a good correlation with the 2D-PD measurements (r=0.93, Y=0.89X+3.9, SEE=8.6ml, P0.001); the mean (SD) difference between the two methods was -1.5 (9.8) ml. RJF% estimated by the RT3D CDFI method also correlated well with the values obtained by the 2D-PD method (r=0.88, Y=0.71X+14.8, SEE=6.4%, P0.001); the mean (SD) difference between the two methods was -1.2 (7.9) %. Conclusions: The newly developed RT3D CDFI technique is feasible in the majority of patients. In patients with eccentric aortic regurgitation, this new modality provides additional information to that obtained from the two-dimensional examination, which overcomes the inherent limitations of two-dimensional echocardiography Doppler flow imaging by depicting the full extent of the jet trajectory. In addition, the RT3D CDFI method is quick and accurate in calculating regurgitant jet volume and fraction.Read More
Publication Year: 2004
Publication Date: 2004-01-01
Language: en
Type: article
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