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Identifying Coronary Artery Calcification on Non-gated Computed Tomography Scans
Published on: August 28, 2018
Computed tomography coronary angiography plaque burden in patients with suspected coronary artery disease
Erica Maffei1, Sara Seitun, Matteo Romano
1Department of Radiology and Cardiology, Azienda Ospedaliero-Universitaria, Parma, Italy.
Insights
Established cardiovascular risk factors, age, and typical chest pain strongly predict significant coronary artery disease (CAD) in symptomatic individuals. Computed tomography coronary angiography aids in risk stratification for suspected CAD.
Area of Science:
- Cardiovascular imaging and diagnostics
- Radiology and medical imaging
- Preventive cardiology
Background:
- Coronary artery disease (CAD) remains a leading cause of mortality worldwide.
- Accurate risk stratification is crucial for timely intervention and management.
- Computed tomography coronary angiography (CTCA) offers a non-invasive method for evaluating coronary arteries.
Purpose of the Study:
- To investigate the association between traditional cardiovascular risk factors, clinical presentation, and the extent of coronary artery disease (CAD).
- To evaluate the diagnostic performance of computed tomography coronary angiography (CTCA) in identifying significant CAD.
- To determine predictors of significant CAD in symptomatic patients without prior history.
Main Methods:
- A cross-sectional study involving 567 symptomatic patients without a history of CAD.
- All participants underwent 64-slice CTCA for suspected CAD evaluation.
- Analysis of CAD prevalence based on sex, age, symptoms, and cardiovascular risk factors.
Main Results:
- Significant CAD (luminal narrowing >50%) was found in 21% of patients.
- CAD prevalence significantly increased with age (above 50 years) and the number of risk factors.
- Male sex, older age, presence of risk factors, and typical chest pain were strong independent predictors of significant CAD.
Conclusions:
- CTCA is valuable for assessing coronary artery anatomy and identifying significant CAD.
- Risk stratification using CTCA can identify patients at higher risk for cardiovascular events.
- The study highlights the importance of integrating clinical factors with imaging findings for comprehensive CAD assessment.
Purpose:
To determine the relationship between established cardiovascular risk factors, clinical presentation and the extent of coronary artery disease (CAD), as described with computed tomography coronary angiography.
Material And Methods:
In this cross-sectional study, we included 567 symptomatic individuals without a history of CAD who consecutively underwent 64-slice computed tomography coronary angiography for evaluation of suspected CAD. We analyzed the prevalence of CAD depending on sex, age, symptoms and risk factors.
Results:
A total of 8542 segments were analyzed. No evidence of CAD was observed in 225 patients (40%), nonsignificant CAD in 221 patients (39%) and significant CAD (luminal narrowing >50%) in the remaining 121 patients (21%). CAD increased with advancing age, significantly above 50 years (P < 0.05). Female patients had a higher prevalence of normal coronary arteries and males of significant CAD (P < 0.01). With the increase of risk factors, there was a significant increase of the significant disease (P < 0.01). Typical pain with respect to atypical pain had the strongest association with significant CAD (16 vs. 38%; P < 0.05). In multivariate analysis, the number of risk factors, age, male sex and typical pain remained strong predictors of significant CAD (P < 0.0001).
Conclusion:
Computed tomography coronary angiography may play an important role in risk stratification of patients with suspected CAD.
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