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Correlation Between Tissue Doppler Imaging Method (E/e') and Invasive Measurements of Left Ventricular Filling
Daniele Orso1, Marta Sabbadin2, Giacomo Bacchetti2
1Department of Anesthesia and Intensive Care, ASUFC University Hospital of Udine, Udine, Italy.
Journal of Cardiothoracic and Vascular Anesthesia
|September 1, 2024
Summary
The E/e' ratio moderately correlates with pulmonary capillary wedge pressure (PCWP) and left ventricular end-diastolic pressure (LVEDP). This echocardiographic measurement shows potential for estimating filling pressures, though correlation varies in specific patient groups.
Area of Science:
- Cardiology
- Medical Imaging
- Clinical Research
Background:
- Pulmonary capillary wedge pressure (PCWP) estimation via right heart catheterization is invasive.
- Echocardiography, specifically mitral annular tissue Doppler imaging (TDI), offers a non-invasive method to assess left ventricular filling pressures.
- The E/e' ratio, derived from mitral inflow (E) and mitral annular (e') velocities, is a key echocardiographic parameter.
Conclusions:
- The E/e' ratio demonstrates a moderate correlation with PCWP and LVEDP.
- Correlation remained stable across different measurement sites for e', though site-specific limitations exist.
- A weaker correlation was noted in patients with heart failure with preserved ejection fraction (HFpEF).
