64 Slice Computerized Tomography (CT)
Computed tomography (CT) scanning is a rapid, painless diagnostic examination that combines x-rays and computers to create cross-sectional (or slice-like) pictures of the heart. A CT scan allows the radiologist to see the location, nature, and extent of many different diseases or abnormalities inside your body.
 
How does it work?
The CT scanner is a large machine that looks like a long, narrow tube, which has an x-ray machine inside. The CT scanner takes many x-ray pictures of thin slices of your body. A computer then puts these images together to make one detailed picture. In some cases, a contrast dye is injected into the bloodstream to help doctors get a clearer picture.

Multiple low-dose x-rays are taken in sequence by a rotating x-ray tube. All you need to do is lie still on a table for approximately 15 minutes. The table top will move you through a gantry (shaped like a big donut) which houses the x-ray tube and a set of detectors. Images are acquired by detectors that pick-up the x-ray that passes through your body. The computer processes this information to form an image that the radiologist will review and interpret.

Some CT studies require a contrast agent to enhance the pictures that are taken of your body. You will receive special instructions if your exam requires you to consume an oral contrast agent in advance. Exams requiring contrast material include scans of the head, soft tissue, neck, chest, abdomen, and pelvis.
What should I expect?
If a contrast dye is not going to be used during your CT scan, you should not eat for about 2 hours before the test. If a contrast dye is going to be used, you should not eat for about 4 hours before the test. The contrast dye may cause hot flushing in some patients.

You will be asked to undress and put on a gown. Then, you will lie down on a table, which will be slowly moved through the hollow center of the CT scanner. You will feel relaxed and comfortable. You will be asked to lie still and to briefly hold your breath as each picture is taken.

After the test, you may go about your normal activities. Some people find that they have a bad reaction to the contrast dye, but this is rare. If this happens, you will be treated at the hospital after your test.

CT scanning is a safe test. Although your exposure to radiation is small, you should not have a CT scan if you are pregnant. For specific instructions/restriction on exam preparation, please refer to our Patient Prep Instructions.

Frequently Asked Questions:

Q: How long does the exam take?
A: A CT scan requires that you relax and lie still for 10-30 minutes.

Q: What should I wear?
A: Wear clothing that is comfortable (i.e., sweat pants, t-shirt, shorts, etc.). It may be necessary for you to change into a patient gown depending on the area being scanned.

Q: Are there any special preparations/restrictions?
A: If your exam requires a contrast dye to be used, please do not eat anything for 3-4 hours prior to the exam. Exams requiring contrast material include scans of the head, soft tissue, neck, chest, abdomen, and pelvis.

Q: May I have a CT scan when I am breastfeeding?
A: If you have contrast as part of your exam, please suspend nursing for 24 hours after the scan.

Q: Are barium sulphate studies painful?
A: No, but the volume of the barium can distend your abdomen and create a tight or cramping sensation. Florida Institute For Advanced Diagnostic Imaging conducts procedures rapidly so that patients can evacuate the barium as quickly as possible to eliminate the discomfort.

Q: How will I feel after the exam?
A: In most cases, you may resume normal activity immediately.

Q: Can I take my prescribed medication?
A: Yes, for any CT exam, you may continue taking your prescribed medication(s), with the exception of Glucophage diabetic medication.