Related Experiment Video
Updated: Jul 14, 2026

Optical Coherence Tomography Based Biomechanical Fluid-Structure Interaction Analysis of Coronary Atherosclerosis Progression
Published on: January 15, 2022
Thoracic aorta atherosclerosis burden index predicts coronary artery disease in patients undergoing transesophageal
Alexandra Frogoudaki1, John Barbetseas, Constadina Aggeli
1Thriasion General Hospital, Magoula, Greece. afrogou@otenet.gr
Insights
The novel thoracic aortic atherosclerosis burden index (TAABI) accurately predicts coronary artery disease (CAD). A TAABI greater than 6 indicates a high likelihood of significant CAD, aiding in risk assessment.
Area of Science:
- Cardiovascular Medicine
- Medical Imaging
- Atherosclerosis Research
Background:
- Thoracic aortic atherosclerosis (TAA) severity correlates with coronary artery disease (CAD) extent.
- Quantitative assessment of TAA is crucial for predicting CAD.
- Existing methods may not fully capture the relationship between TAA and CAD.
Purpose of the Study:
- To develop and validate a novel atherosclerotic index for quantifying TAA.
- To establish a quantitative relationship between TAA severity and CAD extent.
- To assess the predictive value of the novel index for identifying significant CAD.
Main Methods:
- Transesophageal echocardiography (TEE) and coronary angiography were performed on 246 patients.
- A grading system assessed TAA extent in individual thoracic aorta segments.
- The thoracic aortic atherosclerosis burden index (TAABI) was calculated as the sum of segment gradings.
Main Results:
- The TAABI demonstrated high specificity and sensitivity in predicting CAD.
- A TAABI > 6 was associated with a 16-fold increased probability of CAD.
- This threshold yielded 88% specificity and 81% sensitivity for CAD prediction.
Conclusions:
- A TAABI value exceeding 6 reliably predicts the presence of significant CAD.
- Patients with minimal TAA have a low risk of developing angiographically significant CAD.
- The TAABI serves as an effective tool for risk stratification in patients with suspected CAD.
Aims:
The severity of thoracic aortic atherosclerosis (TAA) is associated with the extent of coronary artery disease (CAD). The aim of this study is to quantitative this relationship by developing a novel atherosclerotic index.
Methods And Results:
Two hundred and forty six consecutive patients underwent transesophageal echocardiography (TEE) and coronary angiography. A grading system was used to define the extent of TAA for individual segment of the thoracic aorta. TAA burden index (TAABI) was defined as the sum of the grading for each segment. Of the derived values TAABI had the greatest specificity and sensitivity in predicting CAD. A TAABI of greater than 6 was associated with 16-fold increase in the probability of CAD with a specificity of 88% and a sensitivity of 81%. The positive predictive value was 77% and the negative predictive value 90%.
Conclusion:
A TAABI value of greater than 6 accurately predicts the presence of CAD. Patients with no or mild TAA are at low risk of having angiographically significant CAD.
Related Concept Videos
Aneurysm II: Clinical Manifestations and Diagnostic Studies
Atherosclerosis II: Clinical Manifestations and Diagnostic Tests
Thoracic Aorta
Aortic Regurgitation II: Clinical Features and Diagnostic Tests
Imaging Studies for Cardiovascular System VI: Calcium -Scoring CT
Coronary Artery Disease I: Introduction

