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27 cze 2023 · An MRI with contrast is an imaging test that combines magnetic and radio wave imaging with an injection of a contrast agent (dye). The dye highlights blood vessels, organs, and specific soft tissues so they show up more clearly and help your radiologist determine a diagnosis.
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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.
MRI is a type of scan that uses strong magnetic fields and radio waves to produce detailed images of the inside of the body. It is a painless and safe procedure. The results of an MRI scan can be used to help diagnose conditions, plan treatments and assess how efective previous treatment has been.
21 lut 2024 · Procedure. The administration of GBCAs is typically conducted via an intravenous (IV) injection either before or during the MRI scan. The timing of the injection relative to the scan can vary depending on the specific area being examined and the type of information the radiologist is seeking.
7 cze 2017 · You may receive a contrast solution, usually gadolinium, through an IV to allow the MRI machine to see certain parts of your brain more easily, particularly your blood vessels.
Functional MRI can be used to examine the brain's anatomy and show which parts of the brain are handling critical functions, language and movements. This information can help guide decisions when considering someone for brain surgery.
A variant called MR angiography (MRA) provides detailed images of blood vessels in the brain—often without the need for contrast material. See the MRA page for more information. MRI can detect stroke at a very early stage by mapping the motion of water molecules in the tissue.
