CT Calcium Score and CT Coronary Angiogram (CTCA) Information CTCA is a fast, non-invasive CT imaging scan to assess the coronary arteries of your heart. CTCA is a safe and accurate way to exclude the presence of coronary artery disease (CAD). While the scan only takes 10 minutes, the procedure can take up to 1 … Continue reading CT Calcium Score and CT Coronary Angiogram (CTCA)