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Contrast Materials, SHANESKA RAWLINS - Coggle Diagram
Contrast Materials
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Iodine-based and barium-sulfate compounds are used in x-ray and computed tomography (CT) imaging exams. Contrast materials can have a chemical structure that includes iodine, a naturally occurring chemicalelement. These
contrast materials can be injected into veins or arteries, within the disks or the fluid spaces of the spine, and into other body cavities.
Barium-sulfate is the most common contrast material taken by mouth, or orally. It is also used rectally and is available inseveral forms, including:
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powder, which is mixed with water before administration
Gadolinium is the key component of the contrast material most often used in magnetic resonance (MR) exams. When this substance is present in the body, it alters the magnetic properties of nearby water molecules, which enhances the quality of MR images.
Saline (salt water) and gas (such as air) are also used as contrast materials in imaging exams. Microbubbles and microspheres have been administered for ultrasound imaging exams, particularly exams of the heart.
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They are substances that temporarily change the way x-rays or other imaging tools interact with the body.
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Contrast materials, also known as contrast agents and contrast media. they are used to improve the diagnostic value of tests.
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