What is a CT scan?
Computed tomography (CT) is a diagnostic imaging test used to create detailed images of internal organs, bones, soft tissue and blood vessels. The cross-sectional images generated during a CT scan can be reformatted in multiple planes, and can even generate three-dimensional images that can be viewed on a computer monitor, printed on film or transferred to electronic media. CT scanning is often the best method for detecting many different cancers since the images allow your doctor to confirm the presence of a tumor and determine its size and location. CT is fast, painless, noninvasive and accurate.
How to prepare for a CT?
Different types of CT tests have different preparation instructions. Your provider and/or our imaging center will provide you with specific instructions for your particular scan prior to your appointment. For any type of CT exam, please remember to:
- Wear comfortable, loose fitting clothing. If needed we will provide you with scrubs to change into for your exam.
- Tell your provider and the technologist if you are allergic to, or have ever had a reaction to, iodine contrast
- Tell your provider and technologist about any medications you are taking
- Tell your provider and technologist if you are pregnant, think you might be, or are breastfeeding
- You may be asked to remove any hair accessories or jewelry that may interfere with your CT scan.
What to expect during your CT?
Please plan to be in our imaging center for at least 15 minutes on the day of your exam. The technologist will talk with you prior to your exam and ask you questions about your overall health history, current medications and prior imaging studies. The technologist will then position you on the CT table, ensuring you are as comfortable as possible. You will be able to communicate with the technologist during the entire exam through a patient intercom system. You will need to remain as relaxed and still as possible during your exam to make sure the technologist is able to get the clearest images possible. You may also be asked to hold your breath for short periods of time as images are taken.
How long does a CT scan take?
Typically, you should plan for an hour for a CT scan. Most of that time is for preparation. The scan itself takes between 10 and 30 minutes or less. Generally, you can resume your activities after a healthcare provider says it is safe to do so — usually after they complete the scan and verify clear images.
When should I know the results of my CT?
After your CT scan, a radiologist will analyze the images. The radiologist will send a signed report to your ordering healthcare provider within 24 hours of the scan. Your provider will share the results with you.
