Magnetic Resonance Imaging (MRI) is a medical imaging method that creates detailed images of the body's organs and tissues using a magnetic field and computer-generated radio waves.
The majority of MRI equipment features huge, tube-shaped magnets. As people lie inside an MRI machine, the magnetic field realigns the water molecules in their bodies for a short time. Radio waves allow these aligned atoms to generate mild signals to create cross-sectional MRI images analogous to slices in a loaf of bread. The MRI equipment may also generate 3D images that can be viewed from various perspectives.
What is MRI used for?
MRI (Magnetic Resonance Imaging) is a highly effective diagnostic tool used to create detailed images of the inside of the body. It uses a strong magnet, radio waves, and a computer to produce high-resolution images of the body's internal structures.
Here are the following common uses for MRI:
- Diagnosing medical conditions : MRI can help diagnose a wide range of medical conditions, including cancers, neurological disorders, heart and vascular disease, musculoskeletal injuries, and joint problems.
- Monitoring the progression of a medical condition : By taking repeat MRI scans over time, doctors can monitor the progression of certain medical conditions and evaluate the effectiveness of treatments.
- Planning surgery or other medical procedures : MRI can be used to plan surgeries, radiation therapy, and other medical procedures by providing detailed images of the body's internal structures.
- Screening for certain medical conditions : MRI can be used to screen for certain medical conditions, such as breast cancer, prostate cancer, and other types of cancer.
What happens during MRI?
- You will move on a table that slides into the MRI machine, which is a long, narrow tube open at both ends.
- A technician monitors the scan from another room and communicates with you through a microphone.
- The procedure is painless, but the machine produces repetitive tapping or thumping noises. Earplugs or music are provided to minimize discomfort.
- For functional MRI (fMRI), you might be asked to perform small tasks during the scan to identify specific brain activity areas.
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Get A Second OpinionHow to prepare for the test?
Here are some general guidelines for preparing for an MRI (Magnetic Resonance Imaging):
- Follow the doctor's instructions : The doctor or imaging center will provide you with specific instructions on how to prepare for the MRI, including what to drink or eat before the test, which medications to take or avoid, and any other special considerations based on your medical history.
- Wear comfortable, metal-free clothing : You'll need to wear comfortable, loose-fitting clothing without any metal objects. If necessary, you may be asked to change into a hospital gown.
- Inform the technologist if you have any medical conditions : you have any medical conditions that may affect the test, such as claustrophobia, kidney problems, or allergies to contrast dye, be sure to inform the technologist or radiologist before the test.
What to Expect During an MRI Procedure?
- You’ll lie on a motorized table that slides into the MRI scanner, a large tube-like machine.
- The procedure is painless, but the machine generates loud tapping or thumping noises. Earplugs or headphones are provided for comfort.
- A technician monitors the scan from another room and communicates with you through an intercom.
- If contrast dye is needed, MRI diagnostic tool it will be administered via an IV to enhance the images.
How long does an MRI scan take?
The entire exam usually takes between 30 and 50 minutes to complete, depending on the type of exam and the technology utilized. Based on the specific cause for the scan, the healthcare provider will be able to offer patients a more precise time range.
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Book an AppointmentSide effects of MRI contrast
For some scans, a contrast dye is injected to enhance image quality. Side effects are rare but can include:
- Mild headache or pain at the injection site.
- Rare allergic reactions such as hives or eye irritation.
Always inform the technician about any allergies before the procedure.
When should I expect to receive my MRI results?
A radiologist will evaluate the images from the MRI scan. The radiologist will send you a signed report, which you will discuss with your primary care physician. A follow-up exam may be required.
