Computed Tomography (CT)

A computed tomography (CT) scan, also known as a CAT scan, uses X-rays to make highly detailed pictures of the inside of the human body. A CT scan involves the patient laying down on mechanical table that is inserted into the CT machine. A scanner takes X-rays images and spins around the patient as the table moves into the machine, which is compiled into a cross sectional image. A CT scan can be used to study all parts of the body including organs, blood vessels, bones, chest, abdomen, extremities, and the spinal cord. A CT may be required in cases where the patient has a condition that prevents the use of an MRI such as a metal implant, shrapnel, pacemakers, etc.

How to prepare for a CT scan?

  • All patients should review our Patient Prep Page before their appointment.
  • View our Patient Prep Page
  • Patients scheduled for a CT scan leave all jewelry and non-essential personal items.
  • For patients that have been scheduled for a CT with a contrast material, please inform the facility staff or the technologist of any of the following as they may indicate a higher risk to have a negative reaction to the contrast material:Any information of a history of asthma, allergies, kidney problems, diabetes, heart problems, or thyroid problems.

What to expect during the CT?

  • You will be asked to lay down on a mechanical table that is inserted into the machine to scan the desired body region.
  • The CT scan generally takes 30 to 40 minutes depending on the type of scan being performed and the body part being scanned. During the scan, please try to remain calm and breathe normally as large body movements can interfere with the MRI results.
  • You will be in constant contact with the CT technologist should there be any problem or concern during your exam.
  • After your MRI, you may return home or to work. DFW MRI will contact your doctor within 24 to 48 hours with the results of your study. Only your doctor is authorized to discuss your MRI results with you

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