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Doctor insights on: How Common Is It For Someone To Need A Helical Computed Tomography

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How common is it for someone to need a helical computed tomography?

How common is it for someone to need a helical computed tomography?

Very Common Test: 'helical computed tomography' -- a cat scan -- is an immensely valuable test for evaluating diseases of every part of the body. Scanners are widely available, both in hospitals and in outpatient centers, and the images obtained provide valuable insight into many diseases. ...Read more

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Dr. Mark Ingerman
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Computed Tomography (Definition)

Ct uses xrays taken an 360 degrees combined with a computer to see"inside" the body. The table moves as the xray tube and detectors spin around the patient 10 times a second or more! the image shows excellent soft tissue detail, enhanced with injection of intravenous contrast or oral contrast. This way the body is shown in slices, in any plane, usually axially, but ...Read more


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Is computed tomography angiogram cta a very common procedure?

Is computed tomography angiogram cta a very common procedure?

CT angiogram: It is being done much more often when it is necessary to visualize blood vessels (for example to see if there's a blockage). There is some radiation involved but it is considered much less "invasive" and has less complications than the regular type of "angiogram", where blood vessels are visualized by inserting thin tubes called catheters directly into them to inject a dye. ...Read more

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Is a spiral (helical) computerized tomography CT of the chest the same thing as a high-resolution CT scan?

No: Essentially all ct now is spiral. High resolution ct of the chest is a special exam to evaluate the lung tissue using very fine slices and special image manipulation to see fine detail in the tubes and air sacs of the lung. ...Read more

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What is the definition or description of: computed tomography angiogram cta?

Artery test: A special type of ct scan where intravenous dye is injected, and imaging is timed so that the arteries of interest are maximally opacified by the injected dye. Ct images in this test are acquired rapidly, and the actual scan will likely be done in a matter of seconds. Historically, evaluating the arteries required threading a catheter into the artery of interest. Cta is non-invasive. ...Read more

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What is the use of spect (single-photon emission computed tomography) in nuclear medicine?

Multiple : Spect is a modality of nuclear medicine imaging that allows for 3d imaging, therefore better for diagnostic purposes. Uses include scans of the bones, lungs, heart. ...Read more

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What is pitch when it comes to computed tomography?

What is pitch when it comes to computed tomography?

Amount: Table moves with each rotation of the x-ray tube in the scanner. ...Read more

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What is the definition or description of: computed tomography?

What is the definition or description of: computed tomography?

Image inside body: Ct uses xrays taken an 360 degrees combined with a computer to see"inside" the body. The table moves as the xray tube and detectors spin around the patient 10 times a second or more! the image shows excellent soft tissue detail, enhanced with injection of intravenous contrast or oral contrast. This way the body is shown in slices, in any plane, usually axially, but often coronal or saggital. ...Read more

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Will I get any medicine for pain when I go for the computed tomography?

No: A routine ct does not cause pain. Even if contrast is given, only a small IV is placed and no pain medicine is necessary. If you have an underlying condition that causes pain and limits your ability to lay on your back you may need to talk to the doctor requesting the exam to see if you should take medicine prior to the exam. ...Read more

Dr. Michael Korona
1,791 doctors shared insights

Ct Scan (Definition)

Ct scan uses data from a beam of xrays and reconstructs a cross sectional image of your body. It is a high dose of xrays and used only when the benefits outweigh the risk. Cancer risk is 1 in 500 in children. Also using iodinated contrast might cause transient renal failure in about 5% of patients. (contrast induced nepropathy) most do not explain this to the patient as ...Read more


Tomography (Definition)

"tomo" comes from the greek word for "cut" or "slice". "graph" comes from the greek word for "writing" or "drawing". Computed tomography (or ct) uses a computer to form/make/draw many separate image slices of the inside ...Read more