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Cosa (chi) è contrast enhancement - definizione

SUBSTANCE USED IN MEDICAL IMAGING TO ENHANCE THE CONTRAST OF STRUCTURES OR FLUIDS WITHIN THE BODY

Contrast media; Contrast Medium; Contrast agents; Contrast substance; Contrast material; Intravenous contrast; Contrast enhancement; Contrast medium

Contrast agent

A contrast agent (or contrast medium) is a substance used to increase the contrast of structures or fluids within the body in medical imaging. Contrast agents absorb or alter external electromagnetism or ultrasound, which is different from radiopharmaceuticals, which emit radiation themselves.

https://en.wikipedia.org/wiki/Contrast_agent

contrast medium

¦ noun Medicine a substance introduced into a part of the body in order to improve the visibility of internal structures during radiography.

Contrast-enhanced ultrasound

APPLICATION OF ULTRASOUND CONTRAST MEDIUM TO TRADITIONAL MEDICAL SONOGRAPHY

Contrast enhanced ultrasound; Agitated saline contrast test; Agitated saline contrast study; Agitated saline bubble test; Agitated saline bubble study; Bubble study; Bubble test; ASCS; Perflexane lipid microspheres; Perflexane; Imavist; Optison; Microbubble contrast agent; Microbubble contrast agents; Perflutren; Sonovue; Agitated saline test; Ultrasound contrast; Luminity

Contrast-enhanced ultrasound (CEUS) is the application of ultrasound contrast medium to traditional medical sonography. Ultrasound contrast agents rely on the different ways in which sound waves are reflected from interfaces between substances.

https://en.wikipedia.org/wiki/Contrast-enhanced_ultrasound

Wikipedia

Contrast agent

A contrast agent (or contrast medium) is a substance used to increase the contrast of structures or fluids within the body in medical imaging. Contrast agents absorb or alter external electromagnetism or ultrasound, which is different from radiopharmaceuticals, which emit radiation themselves. In x-ray imaging, contrast agents enhance the radiodensity in a target tissue or structure. In magnetic resonance imaging, contrast agents shorten (or in some instances increase) the relaxation times of nuclei within body tissues in order to alter the contrast in the image.

Contrast agents are commonly used to improve the visibility of blood vessels and the gastrointestinal tract.

The types of contrast agent are classified according their intended imaging modalities.

https://en.wikipedia.org/wiki/Contrast agent