Diagnostic Imaging

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Indiana Regional PET

Indiana Regional PET Diagnostic Imagaing is located in Merriville, IN. Our State-of-the-Art Equipment allows us to specialize in CT and PET/CT scans.

Patient Services

CT, CT Scan

What is a CT Scan?

Also called CT, CT Scan and CAT Scan is an X-Ray technique that produces more detailed images of your internal organs than conventional X-Ray exams.  X-rays are a form of energy radiation.  Conventional X-Ray exams produce two-dimensional images, but CT uses an X-Ray sensing unit, which rotates around your body, and a large computer to create cross-sectional images of the inside of your body.  A CT scan reveals bones and organs as well as your pancreas, adrenal glands, ureters and blood vessels, all with a higher degree of precision than an X-Ray.  CT is a noninvasive way to view your internal organs and tissues.

The test itself is completely painless.  You will be asked to lie quietly on the CT scanner’s “patient couch” during the study.  Depending on the type of study being done, you may be injected with an I.V. contrast material during the exam.  This may make you feel warm during the injection, but this is a normal feeling.

Because contrast agents contain iodine, which causes an allergic reaction in some individuals, be sure to tell the technologist, nurse, or radiologist if you have had an allergic reaction to these agents before, or if you have any other allergies.  We use nonionic contrast exclusively which is less risk to these patients.

Benefits of CT

CT Scans can be up to 100 times more sensitive than regular X-Rays.  So subtle differences in tissue are more easily detected.

CT is a quick, pain-free procedure.

Risks of CT

Women should always inform their doctor or technologist if there is any possibility that they are pregnant.

During a procedure, a patient is exposed to radiation.  The radiation may pose a risk to the fetus of a pregnant woman.

CT scans require a very low dose of radiation that are well within safe limits.  Always keep in mind that the value of the information gathered during a CT scan far outweighs the risk.


You will be asked to change into a gown or scrubs for most procedures.  You may be asked to remove hairpins, jewelry, eyeglasses, hearing aids, and any removable dental work that could obsure the images.  You may also be asked to refrain from eating or drinking anything for 3 hours before the exam.  Depending on the exam ordered by the doctor, you may be required to pick up Oral contrast material ahead of time.  You will be given detailed instructions at that time on how to take the oral contrast.  Women should always inform their doctor or technologist if there is any possibility that they are pregnant.

The length of your exam depends on what type of test your doctor has ordered for you.  Most procedures take no longer than 20-30 minutes.

After the Test.

Most patients are able to return to normal activities immediately following the exam.  If you receive the I.V. contrast material, you should drink plenty of fluids the next few days.  If you are a diabetic and taking a form of Metformin, you will be given specific instructions on how to take your medicine before and after the CT scan.

When the exam is complete, a radiologist (a specially trained medical imaging doctor) will review your pictures. Your physician will receive a report and pictures detailing the findings from your exam within 24 hours.

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7891 Broadway- Suite A
Merriville, IN 46410 
219.793.9655 - Fax 219.793.9692