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Tissue Doppler imaging in the evaluation of left ventricular diastolic function
1Department of Medicine, Cardiology Section, Baylor College of Medicine, Houston, Texas 77030, USA. hishamd@bcm.tmc.edu
Current Opinion in Cardiology
|August 19, 2004
Summary
Tissue Doppler (TD) imaging assesses left ventricular diastolic function by measuring myocardial velocities. Recent advancements enhance its use in diagnosing heart failure and estimating filling pressures.
Area of Science:
- Cardiology
- Echocardiography
- Physiology
Background:
- Tissue Doppler (TD) imaging is an echocardiographic method measuring myocardial velocities.
- It assesses both systolic and diastolic myocardial function.
Purpose of the Study:
- To review the rationale and clinical applications of TD imaging in assessing left ventricular (LV) diastolic function.
- To highlight recent advancements in TD echocardiography for LV diastolic function evaluation.
Main Methods:
- Review of current literature on TD imaging in LV diastolic function.
- Focus on novel TD indices and their clinical utility.
- Comparison with conventional Doppler and B-type natriuretic peptide.
Main Results:
- TD imaging directly measures myocardial velocities, aiding assessment of relaxation and contractile function.
- Derived ratios (E/Ea) estimate LV filling pressures, valuable in diagnosing heart failure.
- New TD indices improve evaluation of myocardial relaxation and filling pressures.
Conclusions:
- TD echocardiography is increasingly used for LV diastolic function assessment.
- Recent developments expand its clinical role in managing cardiac disease and heart failure.