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CT Scanning

Also known as a "CAT" scan, the CT scan is a Computerized Axial Tomography scan that allows doctors to analyze organs and bones for diseases.

500 Questions

What are the advantages of spiral computed tomography scans?

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Asked by GaleEncyofMedicine

Spiral computed tomography scans provide detailed 3D images of internal structures, allowing for better visualization of organs and tissues. They are faster than traditional CT scans, reducing patient exposure to radiation and improving overall scan efficiency. Spiral CT scans are also helpful in diagnosing a wide range of conditions, such as tumors, blood vessel abnormalities, and infections.

What does it mean unenhanced on a ct scan?

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Asked by Wiki User

Done with out contrast

What are similarities between MRI and CAT scans?

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Asked by Wiki User

Other than the fact that it creates an image of your body for medical purposes...absolutely nothing.

Xray uses ionizing radiation (the potentially harmful kind) which passes through your body. Some of it comes out the other side and reacts with a detector that is behind your body. This creates an image by reflecting how much of the radiation passes through. This is dependent upon what type of tissue it is passing through. Bone, for example, will not allow as much to pass through as soft tissue such as fat or muscle.

MRI is very different and quite complicated. It creates images by measuring the way hydrogen molecules in your body react to a magnet. One of the magnets is switched on and off rapidly and the reactions of the hydrogen molecules will depend upon what type of tissue is there. Hydrogen molecules in fat, for example, are attracted to the magnet very quickly, while hydrogen in water will move more slowly. This is the concept used to get images. It does not use the harmful type of radiation like Xray.

What is the disadvantage of ct scan to the human body?

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Asked by Wiki User

CT scanning allows you to gain a very good picture of what is going on inside the patient's body.

There is a minor issue of radiation exposure, however the dose is very small and you certainly get more radiation from the sun than from a CT.

The limitation is the attenuation coefficient of the rays used to assemble the image, in some cases an MRI may give a clearer picture. A PET scan may also be considered.

Nowadays, most CT's are coupled with PET scans, and the only pure CT's are DEXA's used to calculate bone density.

Can you see l4-l5 asymmetic disc bulge of ct scan?

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Asked by Wiki User

With degenerative disc disease, disc bulging occurs with flattening out of the disc and subsequent spreading out. Typical bulging presents symmetrical, but sometimes a protrusion will develop that is eccentric, ie., asymmetrical bulging. An eccentric protrusion will be to one side, in this case left, sometimes causing neurologic symptoms on that side, sometimes not. A protrusion is less than 3 mm, whereas a herniation exceeds 3 mm.

What is a ct scan on the bladder?

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Asked by Wiki User

A scan of the bladder probably using ultrasound (what they use on pregnant women) or x-ray maybe ☺

How much is a cat-scan machine?

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Asked by Wiki User

New or used?

I have seen used machines sell for as low as $10,000. ( keep in mind this is an older machine and probably wont give you the best images compared to the latest technology) But maybe that is all that is needed for the types of scans being done at that location.

I have seen newer machines sell for as little as $250,000 to well over $2,000,000. (yes that's 2 million) Its like the options when buying a car and you pay more for newest technology. Places buying scanners evaluate what options are required for the type of scanning they do.

How is gamma radiation used in medicine?

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Asked by Wiki User

gamma radiation is used in cancer treatment. the most common source of gamma radiation is.

What is the function of a scanning?

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Asked by Wiki User

CT scanning or CAT scanning (Computerised Axial Tomography) is used as a non-invasive diagnostic tool.

It may also refer to MRI (Magnetic Resonance Imaging) scanning

What is the difference between a body cat scan and a general cat scan?

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Asked by Wiki User

They are just as they say. An abdominal cat scan is just of that area and a pelvic cat scan is just of that area. Usually if an abdominal cat scan is ordered a pelvis is included so as to cover all things in both areas but if a pelvic cat scan is ordered it usually does not include the abdomen.

Does a pet scan use radiation?

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Asked by Wiki User

Doesn't it make you wonder why these radiation questions have not been answered??

What does a normal MUGA scan show?

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Asked by GaleEncyofSurgery

The pictures are taken via gamma camera driven by a computer program

What is scan conversion?

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Asked by Wiki User

The process of digitization of a image so as to store it in the binary value in the frame buffer is called scan-conversion.

Is a CT scan OSHA recordable?

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Asked by Wiki User

If the scan follows on a work-related incident or injury then it may be recordable. The details are important. Consult someone with specialist knowledge of the OSHA Injury Reporting requirements, who also can be told the details of the situation.

Can a pregnant woman have a CT scan safely?

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Asked by Wiki User

It won't harm the pregnant woman. It WILL, however, hurt your unborn fetus. Depending how far along you are in your pregnancy and which body part is imaged will determine how much it will possibly interfere with your fetus' development.

For example, if you were to get a CT scan of your brain, then your abdomen area would be shielded and your baby would be pretty well protected from any errant radiation as it is not in the primary radiation beam.

If you were to get a CT scan of your abdomen, however, this would more than likely only happen in an extreme emergency situation as the dose to your unborn fetus would be great and it would surely disrupt his development. To what degree, no one really knows. It would also depend on how many weeks pregnant you are. The farther along that you are, the better the outcome in lessening your chance of significant damage to your unborn child. Radiation DOES kill cells. While we can regrow cells, sometimes (in development) those cells cannot be replaced if they were being formed at a critical time in the babies development.

Any radiation study being requested on a pregnant female should always be questioned as to the importance of the study and can any other test be done first. You and your doctor must outweigh the risks and benefits before undergoing a radiation test while pregnant.

What does a ct scan with contrast show?

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Asked by Wiki User

A CT scan, computed tomography, is a medical test performed to diagnose a malady. The CT scan will allow the doctor to see internal injuries not shown on an X-ray picture.