Computed Tomography

What is CT?

The CT scan, or Computed Tomography scan, is an advanced diagnostic test that uses X-rays, a special scanner and a computer to produce detailed images of a specific area of your body. These images, when studied in sequence, can give your provider a 2-D view of your body.

How does a CT work?

The scanner is made up of a ring containing an X-ray tube and receptors. The part of your body your provider wants the radiologist to see will be placed within the ring and the X-ray tubes rotate around you. With each rotation, the tube sends X-rays, and the receptors measure the amount of X-rays absorbed during each rotation. The computer then transforms these measurements into a visual image. This image, or slice, is viewed on a computer screen during the exam and later converted to digital media for the radiologist and your provider to study.

How to prepare for your 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 a hospital gown or 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 material
• 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 hairpins or jewelry that may interfere with your CT scan.

What can I expect on the day of my exam?

Please plan to be in our imaging center for at least 30 minutes on the day of your exam. After you check in at the front desk, 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 acquired. The radiologist will review your exam and the results will be sent to your provider within 2 business days