Perfusion MRI
Perfusion MRI
Perfusion MRI (pronounced: per-fu-sion M-R-I), also known as dynamic susceptibility contrast MRI (DSC-MRI), is a type of Magnetic Resonance Imaging (MRI) that measures the amount of blood flow in the brain. The term "perfusion" comes from the Latin word 'perfusio', meaning 'to pour over or through'.
Perfusion MRI is often used to diagnose and monitor a variety of medical conditions, including stroke, brain tumors, and Alzheimer's disease. It can also be used to evaluate the effectiveness of treatments for these conditions.
Procedure
During a Perfusion MRI, a contrast agent is injected into the patient's bloodstream. The MRI scanner then takes a series of images as the contrast agent travels through the blood vessels in the brain. This allows doctors to see how much blood is flowing to different parts of the brain, which can help them identify areas of the brain that are not receiving enough blood.
Benefits and Risks
Perfusion MRI has several benefits over other imaging techniques. It can provide more detailed information about blood flow in the brain, which can be useful for diagnosing and monitoring conditions that affect the brain's blood vessels. However, like all medical procedures, Perfusion MRI also has some risks. These include the risk of an allergic reaction to the contrast agent, and the risk of damage to the kidneys from the contrast agent.
Related Terms
- Magnetic Resonance Imaging (MRI): A type of imaging technique that uses a magnetic field and radio waves to create detailed images of the organs and tissues within the body.
- Contrast Agent: A substance that is injected into the body to make certain structures or tissues more visible on imaging scans.
- Stroke: A condition that occurs when the blood supply to part of the brain is interrupted or reduced, preventing brain tissue from getting oxygen and nutrients.
- Brain Tumor: A mass or growth of abnormal cells in the brain.
- Alzheimer's Disease: A progressive disease that destroys memory and other important mental functions.
External links
- Medical encyclopedia article on Perfusion MRI
- Wikipedia's article - Perfusion MRI
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