What is a CT Scan?

A CT or "Cat" scan stands for Computerized (Axial) Tomography. An low-dose x-ray tube is mounted within the scanner, opposite a set of detectors. The detectors receive the x-rays after they pass through the patients' body. Both the x-ray tube and detectors rotate around the patient, resulting in data from multiple angles (360 degrees). A computer then processes this information to create an image on the video screen. These images are called "sections" or "cuts" because they appear to resemble cross-sections of the body.

Who will perform the examination?

Your CT scan will be prepared by a registered radiologic technologist for the radiologist to evaluate.The radiologist will interpret your results and dictate a written report, which will be forwarded to your physician generally within 24 to 48 hours of completion of your procedure. Your physician then will convey the results of the procedure to you.

Why do I need a CT Scan?

CT is typically used to evaluate internal organs of the head, chest, abdomen, or pelvis, but is also useful in evaluating bone pathology, including tumors and fractures.

How do I prepare for a CT Scan?

We generally recommend that you do not eat in the 2 hours prior to your exam. If you are having a CT of the abdomen or pelvis, please do not eat or drink for 4 hours prior to your arrival time (except medication with a small amount of water). If you take insulin for diabetes, please ask your personal doctor if you should temporarily reduce the insulin dose. Inform your physician or a center staff member if you are taking Glucophage (Metformin) or Glucovance (Glyburide/Metformin)for a diabetic condition. Also inform us of any allergies or known medical conditions such as asthma, diabetes, kidney disease, heart disease, multiple myeloma and pheochromocytoma.

Next>> Part 2 - How is the procedure done?