Magnetic resonance imaging (MRI)
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
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
What happens during MRI?
The MRI machine resembles a long, narrow tube with both ends open. Individuals lie down on a moveable table that slides into the tube opening. From another room, a techie keeps an eye on things. One can communicate with the person via a microphone.
The treatment is completely painless. There is no magnetic field or radio waves around you, and there are no moving parts. The inside component of the magnet makes repetitive tapping, thumping, and other noises during the MRI scan. To help block out the noise, one may be provided with earplugs or have music playing.
Individuals may be asked to execute a series of modest tasks during a functional MRI. This helps you recognize the areas of the brain that control these activities.
How 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.
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.
Side effects of MRI contrast
Some patients who use contrast material for their MRI may experience headache and pain at the site of the injection
Hives, irritated eyes, or other symptoms of an allergic reaction to the contrast substance are quite unusual. Inform the technician if you have any allergic reactions. A health doctor will be available to provide prompt medical attention.
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.