Why the study?
What are the normal myocardial velocities measured by tissue Doppler imaging in children, and how do they correlate with age and heart rate?
Population
48 normal children
Design
Cross-sectional
Authors
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Age- and heart rate-adjusted norms needed for pediatric tissue Doppler; leaves open validation against clinical outcomes.
What are the normal myocardial velocities measured by tissue Doppler imaging in children, and how do they correlate with age and heart rate?
Normal myocardial velocities in children measured by tissue Doppler imaging vary by ventricular segment and correlate significantly with age and heart rate, which must be accounted for when assessing myocardial function.
Harada et al. (2000) studied this question.
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