The European Cardiac CT Registry has the unique potential to provide important data that will help to clarify the clinical role of cardiac computed tomography (CT), to create guidelines and recommendations for its use, and to identify the most important areas that require specific further research.

Inclusion Criteria:

• Inclusion of all consecutive patients with accomplished or attempted CT imaging of the heart (whether imaging of the coronary arteries or other structures of the heart)
• Informed consent to be entered in the registry.
• Inclusion of all consecutive patients with accomplished or attempted coronary CT angiography.
• Inclusion of all patients who undergo coronary CT angiography for clinical indications, with separate analysis of patients with suspected coronary artery disease and previously known coronary artery disease.

Exclusion Criteria:

- Besides the absence of informed consent, and cardiac CT studies performed as part of a research protocol, no exclusion criteria exist.

All consecutive patients that are studies by computed tomography of the heart for clinical indications