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What are they? Will I need it?
Some MR exams require the use of contrast agents. Gadolinium, an
intravenous paramagnetic contrast agent, increases the sensitivity of
lesion detection, demonstrating metastatic lesions only several millimeters
in size that are not seen on CT or unenhanced MRI, even with fast imaging
sequences.
Magnevist, our contrast agent of preference, is administered intravenously
and usually is eliminated in the urine within 24-48 hours.
Occasionally, less than 1 percent of our paients (1 in 100,000) experience
side effects of nausea, flushing or headaches. This tends to pass
within seconds.
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