A cardiac computerized tomography (CT) scan – which can also be referred to as a coronary CT angiography or CT angiogram – is an imaging test to view the heart and blood vessels. It is a test that carries few risks and is less invasive than alternative procedures such as an angiogram....
Cardiac CTA is also a useful alternative to invasive coronary angiography for pre-operative evaluation of persons undergoing non-coronary cardiac surgery or high-risk non-cardiac surgery, where invasive coronary angiography would otherwise be indicated. Einstein and colleagues (2007) ascertained the lifet...
The procedure We understand that having a CT scan can make some people nervous, particularly if you are claustrophobic. A typical cardiac CT scan can take up to 30 minutes. Our experienced and caring staff will be there for you, holding your hand, every step of the way. If contrast (a...
Radiation does not remain in the body after the CT angiogram. The X-rays do not create immediate side effects. What to Expect During Your CT Angiogram The exact procedure of your CT angiography will vary depending on your specific condition. Generally, you can expect the procedure to begin wi...
Direct visualization of the epicardial coronary arteries is currently the reference standard to confirm the presence or focal severity of coronary luminal disease, or both. For more than 50 years1 the coronary angiogram has been used to define epicardial
the focus is not on the lungs, but on a person’s heart. A doctor might order a cardiac CT to detect problems with the aorta, heart valves and other arteries. In some cases, a doctor might order a cardiac CT scan to follow up on the results of a procedure, such as coronary artery...
Registration of Cardiac CT Data with Coronary Angiograms Using Digitally Reconstructed RadiographsA semi-automatic point-based 3D-2D registration approach to register computed tomography (CT) data with coronary angiograms using digitally reconstructed radiographs (DRR) is presented. It allows us to ...
angiograms for cardiac procedure planning and guidance,”Med. Phys., vol. 32, no. 12, pp. 3737–3749, Dec. 2005. [16] Xishi Huang, John Moore, Gerard Guiraudon, Douglas L. Jones, Daniel Bainbridge, Jing Ren, and Terry M. Peters, “Dynamic 2D ...
Each of these models was governed by several parameters that dictated the simulated cardiac function and coronary flow distributions. Model personalization was performed using a multi-stage optimization procedure. The first stage tuned the models to match patient-specific measurements of cardiac function ...
This results in similar radiation exposure as a comparable 5-s biplane cineangiogram across all phantom sizes (approximately 0.2 to 1.4 mSv) while maintaining image quality. Discussion During our first year with ACT technology available in our pediatric cardiac catheterization laboratory, we performed ...