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Doctor insights on: Single Photon Emission Computed Tomography

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

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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Dr. Shari Jackson
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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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What is computed tomography stimulation?

What is computed tomography stimulation?

See below: I believe you are referring to the use of ct scanner in a new procedure for implanting deep brain stimulation electrodes to treat parkinson disease, & essential tremor, under general anesthesia. The following youtube video shows the procedure: http://www.Youtube.Com/watch?V=nc7cyadeo_c. ...Read more

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What is a computered tomography angiography?

What is a computered tomography angiography?

CTA: It is an intravenous contrast-enhanced CT scan with technical parameters that optimize detailed visualization of the arterial system. 3D and multiplanar data reconstructions can produce images that look similar to standard catheter angiography. From a patient's point of view, the scanning experience won't be much different from getting a standard CT scan with contrast. ...Read more

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Is the positron emission tomography scan a risky thing to do?

Is the positron emission tomography scan a risky thing to do?

No: It' just a diagnostic dose of radiation, like having a ct scan. (if someone thinks you need a pet scan which is a specialized test and expensive) it's probably safer for you to have it than to go without it.). ...Read more

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What is computerized tomography (ct)

Imaging...: A 'ct' scan is a very sophisticated imaging procedure designed at taking detailed pictures of one's bodies; to help the doctors better pinpont the causes of what ails you. ...Read more

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What are advantages of MRT (Magnetic Resonance Tomography) scan over MRI (Magnetic Resonance Imaging) scan? Are these equally safe?

What are advantages of MRT (Magnetic Resonance Tomography) scan over MRI (Magnetic Resonance Imaging) scan? Are these equally safe?

Same: Those are equivalent terms for the same type of imaging. No x-rays or iodine containing contrast is used for MRI studies. Here is a helpful link. http://www.mr-tip.com/serv1.php?type=db1&dbs=Magnetic%20Resonance%20Tomography ...Read more

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What is nuclear magnetic resonance spectroscopy?

What is nuclear magnetic resonance spectroscopy?

MRS or MRI: MRI is magnetic resonance imaging a type of medical imaging MRS is MR spectroscopy a rarer medical type of exam based on the science behind MRIs in part aimed at either parts of the brain or perhaps skeletal muscle to evaluate metabolism at times....both would be done in an MRI facility. when developed the nuclear part of both was dropped so as to not scare people about it.... ...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 there any pain involved in a positron emission tomography scan?

IV "stick": This is painless though you may feel the pain of an IV as it si stuck into you during the test. The dye is not typically allergic and no pain is involved. Some patients feel claustrophobic. ...Read more

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Is Magnetic Resonance Venography better than a CT Venography?

YES: Yes MRI is usually more accurate than Ct venogram.However certain situations like CT angiography of the brain is usually better a radiologist or specialized physician needs to decide case-by-case if MRR CT is better ...Read more

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Could computed tomography angiography show heart problems?

Could computed tomography angiography show heart problems?

CTA: Cardiac computed tomographic angiograpy is performed to try and diagnose cardiac anatomy and pathology. It doesn't diagnose everything but can provide very useful information that often yield a diagnosis if the study is ordered appropriately. ...Read more

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Expert opinions? Which modality exposes patient generally to more radiation, bone scan or computed tomography?

Expert opinions? Which modality exposes patient generally to more radiation, bone scan or computed tomography?

Sometimes same dose: Background radiation at sea level: 3 msv per year, denver residents get: 6 msv per year, cross country flight: 0.02 msv, x ray chest: 0.06 msv, ct head: 3 msv, ct chest: 5 msv (equivalent to 100 chest xrays) ct abdomen: 5-10, average bone scan 6.5 msv. Radiation depends on size of patient." radiation affects growing body in children more than adults. Doses to children are much less. ...Read more

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What exposes the body to more: radiation bone scan or computed tomography?

What exposes the body to more: radiation bone scan or computed tomography?

CT vs bone scan: The amount of CT radiation exposure depends on the type of CT. Average effective radiation dose for bone scan is about 6 mSv. Dose for head CT is 2mSv, for abdomen CT is 8 mSv, and for CT angiogram 16mSv. ...Read more

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What would a neurologist refer patients for positron emission tomography scans for?

Pet indications: Pet is good to show in vivo abnormal functional areas--it has limitations--it would be nice if cheaper, more available and the pictures come superimposed on MRI pictures---may benefit us in dementia--separate radiation necrosis from active brain tumour--separate infectious from degenerative area. ...Read more

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Tomography (Definition)

Old fashioned tomograms used a moving x-ray source and flat detector to image at a certain depth in a patient. Most commonly this was used to image the kidneys. The most common tomograms used today are in cat scans, or computer assisted tomography. An x-ray source and multiple detectors spin around you, and the data is reconstructed by a computer into a slices, or ...Read more


Dr. Michael Gabor
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Ct Scan (Definition)

Computed tomography (ct scan) or computed axial tomography (cat scan), is a medical imaging procedure that utilizes computer-processed x-rays to produce tomographic images or 'slices' of specific ...Read more