Cardiac CT Angiography
An advanced imaging test that provides detailed 3D pictures of your heart and blood vessels to detect blockages.
Cardiac CT angiography (CTCA) uses high-resolution, ECG-gated CT with intravenous contrast to produce detailed three-dimensional images of the coronary arteries. CT-FFR extends this by assessing the functional significance of arterial narrowing without catheterisation.
Book This Evaluation
Advanced CT imaging produces detailed 3D visualizations of the coronary arteries, identifying blockages without invasive surgery.
What It Detects
- Calcified, non-calcified, and mixed atherosclerotic plaque
- Luminal stenosis severity
- Coronary anomalies and aneurysms
- Bypass graft patency
- Plaque vulnerability characteristics
How It's Performed
Heart rate optimisation via beta-blockers (target <65 bpm), sublingual nitrates for arterial dilation, intravenous contrast injection, and image acquisition taking under one minute. Total appointment duration: 1–2 hours. Patients must fast for four hours and avoid caffeine beforehand.
What Results Mean (CAD-RADS)
- CAD-RADS 0–2 — low disease burden; medical management
- CAD-RADS 3 (50–69% stenosis) — CT-FFR analysis to assess functional significance
- CAD-RADS 4–5 (≥70% stenosis or occlusion) — typically prompts invasive angiography
Who Should Get It
- Stable chest pain or breathlessness with intermediate coronary disease probability
- Abnormal stress test results requiring anatomical clarification
- New atrial fibrillation or heart failure requiring coronary exclusion
- Elevated cardiac risk before non-cardiac surgery
- Coronary anomaly or bypass graft assessment
Ready to Schedule Your Cardiac CT Angiography?
Most evaluations are available on the same day as your consultation with Dr. Peter Chang at Paragon Medical Centre, Singapore.