Computerized Tomography (CT) is a quick, non-invasive test that uses x-rays to capture images in sections as it moves around the body. A computer reassembles the image “slices” to produce clear and detailed images of the scanned area in a matter of seconds. The more slices a CT scanner can produce, the more information that can be captured.

CTA stands for computerized tomographic angiography and is a test that combines a conventional CT scan with the technique of angiography to create images of blood vessels in the body. Physicians may order a CTA to help diagnose a narrowing or blockage of arteries, an aneurysm, a pulmonary embolism or other vascular condition.

Advanced software enables the scanner to also be used for cardiac calcium scoring and imaging of the entire vascular system, possibly reducing the need for some other diagnostic procedures.

Computerized Tomography Procedure Preparation

CT Angio

Procedure preparation for brain, chest, abdomen, abdomen and pelvis of runoff:

  1. Clear liquids only, 4 hours before your exam.
  2. If your physician gave you a written order, you must bring it with you.
  3. Check-in at outpatient registration ½ hour before your appointment.
  4. Report to Imaging Services after registering.

Procedure preparation for sinus, spine, temporal bones, hi-res chest:

  1. No prep is necessary for this test.
  2. If your physician gave you a written order, you must bring it with you.
  3. Check-in at outpatient registration ½ hour before your appointment.
  4. Report to Imaging Services after registering.

CT Scan Preparation

Procedure preparation for abdominal (obtain oral contrast from your physician's office or imaging services):

  1. Clear liquids only, 4 hours before your exam.
  2. Drink ½ of the oral contrast bottle 1 hour before exam.
  3. Bring the rest of the bottle with you to your appointment.
  4. If your physician gave you a written order, you must bring it with you.
  5. Check-in at outpatient registration ½ hour before your appointment.
  6. Report to Imaging Services after registering.
  7. Drink the rest of the oral contrast when the technologist tells you.

Procedure preparation for pelvis (if CT abdomen and pelvis, please follow this preparation. Obtain oral contrast from your physician's office or imaging services):

  1. Clear liquids only, 4 hours before drinking the oral contrast.
  2. Drink the first bottle 2 hours before the scheduled appointment time.
  3. Drink ½ of the second bottle 1 hour before the scheduled appointment time.
  4. Bring the rest of the second bottle with you to your appointment.
  5. If your physician gave you a written order, you must bring it with you.
  6. Check-in at outpatient registration ½ hour before your appointment.
  7. Report to Imaging Services after registering.
  8. Drink the rest of the oral contrast when the technologist tells you.