Quality Improvement Implementation: Improving Reproducibility in the Echocardiography Laboratory

Area of Science:

• Cardiology
• Medical Imaging
• Quality Improvement

Background:

• Interpretative variability in echocardiography can compromise diagnostic reliability.
• Current methods to minimize variability and improve reproducibility are not widely established.

Purpose of the Study:

• To develop and evaluate a continuous quality improvement (CQI) process to reduce interpretative variability in echocardiography.
• To enhance the reproducibility of echocardiographic measurements.

Main Methods:

• A CQI process involving reproducibility testing, review, retraining, and retesting was implemented.
• Acceptable reproducibility was defined as ≥80% of interreader comparisons within a prespecified difference.
• The process was validated across multiple readers and parameters, including left ventricular volume, ejection fraction, and valve assessments.

Main Results:

• Initial acceptable reproducibility was achieved for most parameters, with left ventricular outflow tract diameter requiring retraining.
• All readers achieved acceptable reproducibility after retraining, which was sustained over time.
• A larger group of readers and reevaluation after 1 year confirmed the method's efficacy.

Conclusions:

• A devised continuous quality improvement process effectively reduced interpretative variability in echocardiography.
• The implemented CQI process significantly improved and sustained echocardiographic measurement reproducibility over time.