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Non-invasive coronary artery evaluation with multidetector computed tomography
Miguel Mota Carmo1, Teresa Ferreira, Jorge Quininha
1Serviço de Cardiologia, Hospital Pulido Valente, Lisboa, Portugal. miguelcarmo@netc.pt
Summary
16-slice multidetector computed tomography accurately detects coronary artery disease, offering high sensitivity and specificity. This non-invasive method shows promise for diagnosing coronary lesions compared to invasive angiography.
Area of Science:
- Cardiology
- Radiology
- Medical Imaging
Background:
- Coronary artery disease (CAD) is a leading cause of mortality worldwide.
- Accurate non-invasive diagnostic tools for CAD are crucial for timely intervention.
- Invasive coronary angiography remains the gold standard but carries risks.
Purpose of the Study:
- To assess the diagnostic accuracy of 16-slice multidetector computed tomography (MDCT) for detecting coronary artery disease.
- To compare the performance of MDCT against invasive coronary angiography.
Main Methods:
- A prospective study involving 35 patients (21 men, 14 women; mean age 63.6 years).
- Patients underwent invasive coronary angiography followed by 16-slice MDCT.
- Coronary artery segments were evaluated for lesions >50% diameter reduction using ROC curve analysis.
Main Results:
- MDCT allowed evaluation of 87.7% of coronary segments; limitations included calcification, breath-holding inability, motion artifacts, and stents.
- Overall sensitivity was 85.9% and specificity was 98.2%.
- Positive predictive value was 87% and negative predictive value was 97%.
Conclusions:
- 16-slice MDCT demonstrates high accuracy in detecting or excluding significant coronary artery lesions.
- MDCT is a promising non-invasive technique for CAD diagnosis.
- Further research may refine MDCT's role in routine clinical practice.