(Ultrafast CT, Electron-Beam Computed Tomography, EBCT, Cine CT Scan)

A computed tomography CT scan uses X-rays to study all parts of your body, such as the Brain, chest, abdomen, pelvis, or an arm or leg. It also can study blood vessels, bones, and the spinal cord. The CT scanner sends X-rays through the body area being studied. Each rotation of the scanner provides a picture of a thin slice of the organ or area. All of the pictures are saved as a group on a computer.

In some cases, a dye called contrast material may be used. It may be put in a vein (IV) in your arm, or it may be placed into other parts of your body (such as the rectum or a joint) to see those areas better. For some types of CT scans you drink the dye. The dye makes structures and organs easier to see on the CT pictures.

Fluoroscopy CT is a special test that is not widely available. It uses a steady beam of X-rays to look at movement within the body. It allows the doctor to see your organs move or to guide during a tissue biopsy or to guide the proper placement of a needle to drain an abscess or for placement of other instrument into the right place inside your body.

You may need to take off any jewelry. You will need to take off all or most of your clothes, depending on which area is studied. You may be able to wear your underwear for some scans. You will be given a gown to use during the test. Proper history taking like any allergy to medicines / any pre existing illness / Have a medical device, such as a pacemaker / an insulin pump / pregnancy etc.

In CT scan where contrast material is used, It is better to check kidney functions prior to study as dye may interfere with kidney function. In the study when dye is to be swallowed / injected, Pt is advised to be NBM for Few hours. For some CT scans, you may need a laxative or an enema before the test.

During the test, you will lie on a table that is attached to the CT scanner. The table slides into the round opening of the scanner, and the scanner moves around your body. The table will move while the scanner takes pictures. You may hear a click or buzz as the table and scanner move. It is very important to lie still during the test. During the test, you may be alone in the scanning room. Some people feel nervous inside the CT scanner, sedative help you relax. The technologist will watch you through a window. You will be able to talk to the technologist through a two-way intercom. The test will take about 30 to 60 minutes. Most of this time is spent getting ready for the scan. The actual scan only takes a few seconds. The test will not cause pain.

If dye (contrast material) is used, an IV is usually put in your hand or arm. You may feel a quick sting or pinch when the IV is started. The dye may make you feel warm and flushed and give you a metallic taste in your mouth. Some people feel sick to their stomachs or get a headache. Tell the technologist or your doctor how you are feeling.

The chance of a CT scan causing a problem is small. There is a chance of an allergic reaction to the dye (contrast material). There is a small chance of developing cancer from having some types of CT scans. The chance is higher in children, young adults, and people who have many radiation tests. If you are concerned about this risk, talk to your doctor about the amount of radiation this test may give you or your child and confirm that the test is needed.

There is a slight risk that the CT scan can interfere with implanted or external medical devices. Examples of medical devices include pacemakers, insulin pumps, defibrillators, and neurostimulators.

A computed tomography (CT) scan uses X-rays to make detailed pictures of structures the inside of the body.

The radiologist may discuss the CT scan with you right after the test. Complete results usually are ready for your doctor in 1 to 2 days.