Key result
An automated model based on centerline velocity data from color M-mode echocardiography demonstrated high accuracy for quantifying regurgitant orifice diameter (r=0.96) and volume (r=0.93) in vitro.
A novel automated model based on centerline velocity data from color M-mode echocardiography accurately quantifies mitral regurgitant orifice diameter and volume in vitro.
Answers are grounded in this paper and cite their sources.
High in vitro accuracy supports automated MR quantification development; leaves open clinical translation pending human validation.
Previous echocardiographic techniques for quantifying valvular regurgitation are limited by factors including uncertainties for orifice location and a hemispheric convergence assumption that often results in overand underestimation of flow rate and regurgitant orifice area. Using computational fluid dynamics simulations, these factors were eliminated, allowing a more accurate assessment of regurgitation. A model was developed to allow automated quantification of regurgitant orifice diameter based on the centerline velocity data available from color M-mode echocardiography. The model, validated using in vitro unsteady flow data, demonstrated improved accuracy for orifice diameter (y=0.95x+0.38, r=0.96) and volume (y=1.18x-4.72, r=0.93).
No takes yet. Share an insight, caveat, or question.
Deserranno et al. (2002) studied Mitral valve regurgitation. Automated quantification model based on centerline velocity data vs. In vitro true values was evaluated on Accuracy for orifice diameter and volume (r=0.96 for diameter, r=0.93 for volume). An automated model based on centerline velocity data from color M-mode echocardiography demonstrated high accuracy for quantifying regurgitant orifice diameter (r=0.96) and volume (r=0.93) in vitro.
Synapse has enriched 10 related papers. Consider them for comparative context: