Why the study?
Does a kinematic model incorporating both stiffness and relaxation/viscoelasticity better predict E-wave deceleration time compared to stiffness alone in subjects undergoing simultaneous echo-catheterization?
Population
80 subjects undergoing simultaneous echocardiography-catheterization (yielding 400 E-waves for analysis)
Comparison
Kinematic E-wave model incorporating both… vs Traditional model predicting deceleration time…
Design
Cross-sectional
Authors
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Stiffness alone insufficiently predicts deceleration time; leaves open whether joint modeling refines diastolic assessment in prospective studies.
Does a kinematic model incorporating both stiffness and relaxation/viscoelasticity better predict E-wave deceleration time compared to stiffness alone in subjects undergoing simultaneous echo-catheterization?
E-wave deceleration time is a function of both chamber stiffness and relaxation/viscoelasticity, indicating that quantitative diastolic function assessment requires consideration of both factors.
Shmuylovich et al. (2007) studied this question.
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