Breast Biopsy 
CT Scan
Computed Tomography, also known as CT or CAT scan, is an x-ray technique that allows us to image internal portions of the body. Instead of creating one file like a regular x-ray, a CT scan produces a series of "slices" like those in a loaf of bread. These slices allow a much more precise and detailed view because we look at sections rather than the "whole picture." This imaging technique is able to clearly show soft tissue, like the brain, in addition to dense tissue, like bone. The information gathered during a CT scan is processed by a computer and read by a radiologist to diagnose disease.
Some CT scans require the use of a contrast medium. A contrast medium, which is given intravenously, highlights certain body parts so the radiologist can better see any abnormalities.
CT scans of the abdomen and pelvis often require that patients drink a barium-based liquid to outline the intestines for better viewing.
This page contains the following information about CT scans:
- Reasons for Having a CT Scan
- Risks Involved in a CT Scan
- Conditions to Let Your Doctor Know About
- Insurance Coverage
- Exam Locations
- Scheduling This Exam
- Preparation Guidelines
- What to Expect During Your Exam
- Recovering from Your Imaging Exam
- Getting Your Exam Results
- Additional Information
Reasons for Having a CT Scan
A CT scan has many applications. It is used for screening exams for conditions such as heart disease and lung cancer. It is also used for virtual colonoscopies. This imaging technique can be used to look at any organ or part of the body to check for disease or abnormalities; however, it is particularly useful for imaging the chest, abdomen, pelvis, brain and body injuries.
Risks Involved in a CT Scan
There is the risk of x-ray exposure; however, it is well below the level that causes adverse affects. Read more about radiation safety with CT scans.
If your exam requires contrast medium, there is a very small possibility that you could have an allergic reaction to it.
Conditions to Let Our Doctor Know About
In advance of your exam, let your INVISION radiologist or technologist know if any of the following circumstances apply to you:
- Currently pregnant
- Previous adverse reaction to iodine contrast injection
- Renal disease
- Over age 65
- Asthma with inhaler use 2 times or more per day
- Diabetic taking glucaphage
Insurance Coverage
CT scans are usually covered by insurance when ordered by a physician. Check with your insurance carrier to be sure. Please bring your insurance card with you to your exam.
Exam Locations
A CT scan can be done at the following INVISION locations in the Denver, Colorado area:
Scheduling This Exam
To schedule a CT scan, call 720-493-3700.
Preparation Guidelines
The level of advanced preparation for a CT scan depends on the type and purpose of the CT scan. Following is information for various CT scans. Please contact us at 720-493-3700 if you have any questions.
All CT Scans |
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CT/Sinus |
Everything listed under “All CT Scans” and:
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CT/Internal Auditory Canal Without Contrast |
Everything listed under “All CT Scans” and:
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CT/Abdomen Without Contrast |
Everything listed under “All CT Scans” and:
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What to Expect During Your Exam
Experiences during a CT scan vary slightly, depending on the type and purpose of the exam. Following is information for various CT scans.
All CT Scans
Before your exam, you will be asked to remove eyeglasses, earrings, hair accessories or other metal objects. You may be asked to change into a gown. INVISION provides secure lockers for your personal items during your exam.
When ready for your exam, which will last about 15 minutes, the technologist will answer any questions you have. You will be positioned on the CT table and must remain as still as possible. You may also be asked to hold your breath for short periods of time (usually for a chest or abdominal CT scan). It is normal to hear whirring and mechanical noises as the CT machine rotates around your body to change the angle of the image slices.
If at any time, you experience any other discomfort, please tell the technologist immediately. The technologist will be visually monitoring your exam from an adjoining room, and you will be able to talk to him or her at all times.
CT Scans Requiring Contrast Medium
Contrast medium is given by intravenous (IV) injection before the exam begins. It may cause a warm sensation throughout your body and a metallic taste in your mouth.
Recovering from Your Exam
You can return to your normal activities immediately after your exam.
Getting Your Exam Results
Trained and experienced radiologists interpret all exams then report the specific results to the physician who ordered your exam. In turn, your physician will pass the results onto you. Our radiologists and technologists will be happy to answer questions about the exam procedure itself; however, you will not receive your results from the technologist who performs your exam.
Additional Information
Review the following web sites or articles for additional information on CT scans.
