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Updated: Jul 26, 2025

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Published on: December 11, 2016
Cardiothoracic ratio and left ventricular ejection fraction relationship: A meta-analysis study.
1From the Department of Biostatistics (Elasan), Faculty of Medicine, and from the Department of Anatomy (Yilmas), Faculty of Veterinary Medicine, Van Yuzuncu Yil University, Van, Turkey.
This meta-analysis of 13 studies found a small negative correlation (r=-0.12) between cardiothoracic ratio (CTR) and left ventricular ejection fraction (LVEF), indicating a slight decrease in LVEF with higher CTR.
Area of Science:
- Cardiology
- Medical Imaging
- Statistical Analysis
Background:
- The cardiothoracic ratio (CTR) is a measure used in chest X-rays.
- Left ventricular ejection fraction (LVEF) is a key indicator of heart function.
- Understanding the relationship between CTR and LVEF is crucial for cardiac assessment.
Conclusions:
- This meta-analysis consolidates findings from 13 studies on CTR and LVEF.
- The results provide a comprehensive understanding of the statistical association between CTR and LVEF.
- The study contributes valuable insights to cardiac research regarding CTR and LVEF relationships.
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