How Does Magnetic Resonance Imaging Work?

How Does Magnetic Resonance Imaging Work?

If you've ever had a medical issue that required an in-depth look at your body's internal structures, there's a good chance that you've undergone a magnetic resonance imaging (MRI) procedure. Magnetic resonance imaging is a diagnostic imaging tool that utilizes a magnetic field and radio waves to create detailed images of the inside of the human body. In this article, we'll explain how magnetic resonance imaging works.

What is an MRI?

An MRI scanner looks similar to a large tube that you have to lie inside. The machine produces a strong magnetic field that aligns the protons in your body's hydrogen atoms in specific ways. These hydrogen atoms are present in water and fat molecules throughout your body.

The scanner also emits radio waves that generate signals from the atoms in your body. The signals are captured by the MRI machine's sensors and computerized to create an image of the internal structure of your body. The images produced by MRIs provide doctors with high-quality views of organs, tissues, and bones, which can be used to diagnose and monitor a range of medical conditions.

How Does the MRI Machine Produce Images?

To create an image, the MRI machine produces a strong magnetic field that causes the magnetization of the hydrogen protons in your body. Once the magnetization has occurred, the machine's radio waves target the hydrogen protons, causing them to create their own radio signals. These signals are detected by the machine's sensors and used to create a 3D image.

The strength of the magnetic field, the time between the radio waves, and how long the radio waves last determine the quality of the image produced. An MRI produces hundreds of images that are usually presented in different shades of grey.

What Does an MRI Look Like?

An MRI image usually looks like a cross-sectional slice of the body part being examined. The images are highly detailed and provide doctors with a clear view of the examined area. In addition, the images produced by an MRI can be manipulated, allowing doctors to zoom in on specific areas and rotate the image to view it from different angles.

What are the Risks of Having an MRI?

The MRI machine uses a strong magnetic field, which can be dangerous for certain patients. Patients with metal implants, metallic objects, or pacemakers are not recommended to undergo MRI procedures. In addition, the magnetic field can cause metallic objects in the body to move or shift, which can be dangerous.

Conclusion.

Magnetic resonance imaging provides doctors with a non-invasive way to examine the internal structures of the body. By producing high-quality images, doctors can diagnose and monitor a range of medical conditions. By utilizing a strong magnetic field and radio waves, MRI procedures provide a safe and effective diagnostic tool.

If you require an MRI, you should contact your healthcare provider. They will refer you to a suitable supplier who can perform the procedure. It is important to discuss any medical conditions or implanted devices with your healthcare provider before undergoing an MRI.

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