[Modified Tei index, interobserver agreement related to sonographer experience level]

Area of Science:

• Obstetrics and Gynecology
• Fetal Medicine
• Diagnostic Imaging

Background:

• The Tei index is increasingly used for fetal assessment in various conditions.
• Evaluating interobserver agreement is crucial for its clinical application.

Purpose of the Study:

• To determine interobserver agreement in measuring the modified Tei index.
• To assess the influence of observer experience on measurements.

Main Methods:

• Three observers with different experience levels analyzed 65 fetal ultrasound images.
• Measurements of the modified Tei index were performed independently.
• Interobserver agreement was statistically analyzed.

Main Results:

• Variability in the modified Tei index measurements was observed among observers.
• Correlation coefficients indicated regular to substantial agreement.
• Ejection time showed the lowest variability among individual parameters.

Conclusions:

• The study did not replicate literature-suggested interobserver variability levels.
• Operator experience did not significantly influence modified Tei index variability in this context.
• Further evidence is required to establish conclusive findings.