Accuracy and interobserver variability of coronary cineangiography: a comparison with postmortem evaluation

Area of Science:

• Cardiology
• Medical Imaging

Background:

• Coronary artery disease diagnosis relies on accurate imaging.
• Coronary cineangiography is a key diagnostic tool, but its accuracy and interobserver variability require validation.

Purpose of the Study:

• To assess the accuracy of coronary cineangiography interpretation against postmortem findings.
• To evaluate interobserver agreement in coronary cineangiography interpretation.

Main Methods:

• Two independent observers interpreted coronary cineangiography in 27 patients.
• Interpretations were compared with postmortem examination findings.
• Interobserver agreement was assessed for 340 coronary segments.

Main Results:

• Overall accuracy was high (88-89%), with excellent accuracy for the left main (96-100%) and left anterior descending (91-93%) arteries.
• Interobserver agreement was 86% for all segments, significantly better for left main, right, and left anterior descending arteries.
• Accuracy for adequately opacified segments assessed identically by both observers was 93%.

Conclusions:

• Coronary cineangiography demonstrates high accuracy in evaluating coronary anatomy.
• Minimal interobserver variability supports its use in clinical practice.
• The technique is reliable for diagnosing coronary artery disease.