AD + DIS of scans Flashcards

1
Q

what are the benefits of MRI scans

A

MRI is non-invasive and does not use radiation.
MRI does not involve radiation.
MRI contrasting agent is less likely to produce an allergic reaction that may occur when iodine-based substances are used for x-rays and CT scans.

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2
Q

what are the disadvantages of MRI scan?

A

The major drawbacks of routine MRI usage are the time and expense of the procedure.

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3
Q

what are the advantages of FMRI scans?

A

it doesn’t use radiation like X-rays, computed tomography (CT) and positron emission tomography (PET) scans. If done correctly, fMRI has virtually no risks. It can evaluate brain function safely, noninvasively and effectively.

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4
Q

what are the disadvantages of FMRI scans?

A

First, it’s expensive. Second, it can only capture a clear image if the person being scanned stays completely still. And third, researchers still don’t completely understand how it works.

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5
Q

what are the advantages of PET scans?

A

he small movements don’t ruin the scans and PET has been used for diagnosis of many diseases

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6
Q

what are the disadvantages of PET scans?

A

The image isn’t shown as clearly as it would in an fMRI scan. Also, the radioactive isotope given is only safe for the first couple of times it is used. PET scans can also be expensive.

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