WHAT IS IT?
CT Angiography is an examination which uses a CT scanner to examine the cardiovascular system or blood vessels in the various parts of the body. After an intravenous contrast injection, the CT uses X-Rays to acquire axial images which are assembled into three dimensional views of the blood vessels. When used to view the arteries of the heart, this exam is referred to as Coronary CT Angiography.
While Coronary CTA and Catheter Coronary Angiography are able to obtain similar information, Coronary CTA is performed without the need for hospital admission or catheters inserted into the groin or arm.
Coronary CT Angiography can be used to:
• Assess individuals who are symptom free but have risk factors for heart disease;
• Rule in, or rule out, the presence of coronary artery disease, and can accurately assess its severity, if present;
• Help identify other causes of chest pain that might be unrelated to heart disease;
• Confirm if bypass grafts are still working and whether the underlying disease has progressed in follow-up patients who have previously had cardiac surgery;
• Identify other cardiac abnormalities.
• Chest pain or shortness of breath
• Inconclusive cardiac stress test results
• Coronary bypass grafts and stents
• Coronary anomalies
• Substitute for invasive angiography
• Evaluation for treatment of arrhythmias