Allergic Reaction Magnetic Resonance Imaging Dye

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Definition

Magnetic resonance angiography is an MRI exam of the blood vessels. Unlike traditional angiography that involves placing a tube (catheter) into the body, MRA is considered noninvasive.


Alternative Names

MRA; Angiography - magnetic resonance


How the test is performed

You will lie down on a narrow table, which slides into a large tunnel-like tube inside the MRI scanner. You must lie very still during the exam because movement can make the images blurry.

The MRI uses very powerful magnets and...

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Positive reaction to allergen

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