CAT CTA Scan

What is Computed Tomography (CAT or CT) Scan

Computed Tomography is a method of body imaging in which a thin x-ray beam rotates around the patient.  Small detectors measure the amount of x-rays that passes through the patient or particular area of interest.

A computer analyzes the data to reconstruct 3-dimensional and cross-sectional images.  This enables the physician to identify and locate abnormalities accurately.

PREP

Non-Contrast Studies (Any Area)
If your CT exam is known to be done without the use of IV contrast, there is no prep.

Contrast studies (any area)
If it is known that your CT exam is to be with IV contrast, do not eat for four (4) hours prior to the exam.  Drinking clear liquids is strongly encouraged the evening before the exam, the morning of the exam and following the exam.
    
Medications (CT with Contrast)  Please follow below:
 
NSAIDS:  Discontinue 48 hours prior to the exam and resume 48 hours after the exam.  Your doctor will help determine if your drugs are under this category.    

Glucophage or Metformin:  Do not take either medication for 48 hours after your exam.  Be aware that new meds are always being developed that contain these drugs and may not bear their names.  If you are a diabetic and take oral meds, have your doctor or pharmacist help identify if your medicine contains either of these.