
MRI BRAIN PLAIN WITH CONTRAST
Tested By Sri Divya Diagnostic Center
A brain (head) MRI scan is a painless test that produces very clear images of the structures inside of your head — mainly, your brain. Healthcare providers use brain MRIs to evaluate, diagnose and monitor several different medical conditions that affect your brain or other structures in your head.
Lab Test Details
Description
What is a brain MRI?
A brain MRI (magnetic resonance imaging) scan, also called a head MRI, is a painless procedure that produces very clear images of the structures inside of your head — mainly, your brain. MRI uses a large magnet, radio waves and a computer to produce these detailed images. It doesn’t use radiation.
Currently, MRI is the most sensitive imaging test of your head (particularly, your brain), as compared to other imaging techniques, such as CT (computed tomography) scans or X-rays.
What is a brain MRI with contrast?
Some brain MRI exams use an injection of contrast material. The contrast agent is often gadolinium, which is a rare earth metal. When this substance is present in your body, it alters the magnetic properties of nearby water molecules, which enhances the quality of the images. This improves the sensitivity and specificity of the diagnostic images.
Contrast material enhances the visibility of the following:
* Tumors.
* Inflammation.
* Certain organs’ blood supply.
* Blood vessels.
The contrast can also help diagnose multiple sclerosis, stroke, dementia and infection.
If your brain MRI requires a contrast material, your healthcare provider will insert an intravenous catheter (IV line) into a vein in your hand or arm. They’ll use this IV to inject the contrast material.
Contrast materials are safe intravenous (IV) drugs. Side effects, ranging from mild to severe, do occur, but severe reactions are very rare.
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