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What are radioisotopes, pet and spect?

5 doctors weighed in
Dr. Edward Neilsen
Family Medicine
3 doctors agree

In brief: Visibility

Radioisotopes make molecules that are not typically visible on x-rays to show up.
In the example of pet, a common molecule used is a radioisotope of glucose (sugar). Tissues that are growing rapidly would accumulate the sugar more readily, and the positrons emitted from them would show up on an x-ray. Spect is similar, but takes more images from different angles to make 3d images.

In brief: Visibility

Radioisotopes make molecules that are not typically visible on x-rays to show up.
In the example of pet, a common molecule used is a radioisotope of glucose (sugar). Tissues that are growing rapidly would accumulate the sugar more readily, and the positrons emitted from them would show up on an x-ray. Spect is similar, but takes more images from different angles to make 3d images.
Dr. Edward Neilsen
Dr. Edward Neilsen
Thank
Dr. Joseph Accurso
Radiology

In brief: Radioisotopes are

Radioactive forms of an element, like iodine, tc99m and f18.
Spect is an acronym for single photon emission computed tomography which is a fancy way to re-create an image of the inside of the body using multiple images from around. Pet is positron emissionttomography where matter and antimatter collide in a body, release a gamma ray (like an x-ray) and a picture is formed like spect.

In brief: Radioisotopes are

Radioactive forms of an element, like iodine, tc99m and f18.
Spect is an acronym for single photon emission computed tomography which is a fancy way to re-create an image of the inside of the body using multiple images from around. Pet is positron emissionttomography where matter and antimatter collide in a body, release a gamma ray (like an x-ray) and a picture is formed like spect.
Dr. Joseph Accurso
Dr. Joseph Accurso
Thank
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