Different Types Of Cardiac Computed Tomography Scans
A computed tomography scan is an x-ray procedure that combines multiple x-ray images with the aid of a computer system to generate cross-sectional views of the body. Cardiac computed tomography uses the advanced CT technology to visualize the cardiac anatomy, coronary circulation and the aorta, pulmonary veins, and arteries. Often an intravenous contrast is used to enhance the quality of the images. An iodine-based dye, injected into one of your veins during the scan travels through your blood vessels, and helps to highlight them on the x-ray images. Using multi-slice scanning technique, doctors are able to acquire high-resolution three-dimensional images of the moving heart and great vessels.
Doctors use cardiac computed tomography scanning technique to evaluate the heart muscle, the coronary arteries, the pulmonary veins, the thoracic and abdominal aorta and the sac around the heart.
The several types of CT scans used in the diagnosis of heart disease are as given below:
Calcium-Score Screening Heart Scan: This test is conducted to detect calcium deposits found in atherosclerotic plaque in the coronary arteries. This is considered to be the most effective way to detect early coronary calcification from atherosclerosis, before the symptoms develop.
Coronary CT Angiography: Coronary computed tomography angiography (CTA), a noninvasive heart imaging test used to produce 3-dimensional images of the moving heart and great vessels to determine if either fatty or calcium deposits have built up in the coronary arteries.
Total Body CT Scan: The total body CT scan is a diagnostic technique that uses computed tomography to help identify potential problems or diseases before symptoms even appear. This test is used to analyze three major areas of the body including the lungs, the heart, and the abdomen/pelvis.
Dual-source CT is a new advanced technology that provides full cardiac details with about 50 per cent less radiation exposure as compared to traditional computed tomography.