Left ventricular opacification by intravenous contrast echocardiography

Area of Science:

• Cardiology
• Diagnostic Imaging
• Pharmacology

Background:

• Assessing left ventricular opacification is crucial for cardiac diagnostics.
• Intravenous contrast agents play a key role in echocardiography and other imaging modalities.
• Understanding the efficacy of Albunex in this context is important for clinical practice.

Purpose of the Study:

• To evaluate the efficacy of intravenous Albunex for left ventricular opacification.
• To determine the relationship between left ventricular opacification and pulmonary pressures.
• To assess the correlation between left ventricular opacification and cardiac function.

Main Methods:

• Fifty-two adult cardiac patients, primarily with ischemic heart disease, were included.
• Right heart hemodynamic studies were performed in 37 patients post-Swan-Ganz catheterization.
• Albunex was administered at randomized doses (0.10, 0.15, 0.20 ml/kg) and opacification assessed visually and via videodensitometry.

Main Results:

• Left ventricular opacification was achieved in 93% of injections; 68% showed intermediate or strong opacification.
• Higher Albunex doses (0.20 ml/kg) demonstrated an incremental trend in opacification efficacy (77%).
• Significant correlations were found between opacification parameters and pulmonary pressures/left ventricular function, irrespective of dose.

Conclusions:

• Intravenous Albunex is effective for left ventricular opacification in cardiac patients.
• A clinical dose of at least 0.20 ml/kg is recommended for optimal opacification.
• Patient hemodynamic status significantly influences the degree of left ventricular opacification achieved.