| Health / Medical Topics |
Imaging Contrast Agent
A molecule or molecular complex that increases the intensity of the signal detected by an imaging technique, including MRI and ultrasound. An MRI contrast agent, for example, might contain gadolinium attached to a targeting antibody. The antibody would bind to a specific target – a metastatic melanoma cell, for example – while the gadolinium would increase the magnetic signal detected by the MRI scanner.
Source: National Cancer Institute (U.S.)
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