Hi, I’m Elliot Fishman, a radiologist at Johns Hopkins Hospital in Baltimore, Maryland. In this short video I’d like to describe computed tomography angiography – often called CT Angiography or CT Angiogram.
This important diagnostic imaging test uses an iodine-rich contrast material usually injected into your vein of your arm. A CT scan is performed while the contrast material flows through the blood vessels to the various organs of the body. After the exam, the radiologist processes the images using special computer and special computer software.
If you’re scheduled for a CT scan, there are several important things you can do to prepare for the examination.
First of all, tell your doctor about any recent illnesses, medical conditions or medications you’re taking and whether or not you have any allergies. If you have a known allergy to contrast material, your doctor may prescribe medication to reduce the risk of an allergic reaction.
On the day of your exam, you may be asked not to eat or drink anything for a few hours beforehand. Also, it’s best to wear loose, comfortable clothing and leave any jewelry or metal accessories at home.
You may have some concerns about CT scanning. However, it’s important to remember and to understand and consider the likelihood of the benefit of the CT scan and CT angiogram to your health. While there’s a slight chance of issues related to radiation exposure, the benefit of an accurate diagnosis from CT far outweighs any potential risk. Inform your doctor if you’re pregnant, or if there’s a possibility you might be pregnant.
Remember, CT Angiogram is noninvasive and provides highly accurate and detailed images that may be very important to your health.
For more information about CT Angiography, visit RadiologyInfo.org.