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By Mayo Clinic staffYour doctor should give you instructions about how to prepare for your CT angiogram. Usually you'll be asked not to eat anything for four to eight hours before your test. You can drink water, but avoid caffeinated drinks before your test, because they can speed up your heart rate. This can make it difficult for your doctor to get clear pictures of your heart.
You can drive yourself to the appointment, and you'll be able to drive home or to work after your test.
- Cardiac CT. National Heart Lung and Blood Institute. http://www.nhlbi.nih.gov/health/dci/Diseases/ct/ct_all.html. Accessed March 24, 2009.
- Gerber TC, et al. Noninvasive coronary angiography with cardiac computed tomography and cardiovascular magnetic resonance. http://www.uptodate.com/home/index.html. Accessed March 24, 2009.
- Bluemke DA, et al. Noninvasive coronary artery imaging: Magnetic resonance angiography and multidetector computed tomography angiography: A scientific statement from the American Heart Association Committee on Cardiovascular Imaging and Intervention of the Council on Cardiovascular Radiology and Intervention, and the Councils on Clinical Cardiology and Cardiovascular Disease in the Young. Circulation. 2008;118:586.
- Gerber TC, et al. Ionizing radiation in cardiac imaging: A science advisory from the American Heart Association Committee on Cardiac Imaging of the Council on Clinical Cardiology and Committee on Cardiovascular Imaging and Intervention of the Council on Cardiovascular Radiology and Intervention. Circulation. 2009;119:1056.
- Control your risk factors. American Heart Association. http://www.americanheart.org/presenter.jhtml?identifier=581. Accessed Dec. 2, 2008.
