What is the function of MRI?

The function of an MRI (Magnetic Resonance Imaging) is to create detailed images of nearly all structures and organs inside the human body for diagnostic purposes.

How MRI Works

MRI technology employs powerful magnets and radio waves to generate images on a computer. Unlike some other imaging techniques, MRI does not use ionizing radiation, making it a safer option for many patients. Here's a breakdown:

• Magnets: A strong magnetic field aligns the protons within the body's water molecules.
• Radio Waves: Radio waves are then pulsed, temporarily disrupting this alignment.
• Signal Detection: As the protons realign, they release signals that are detected by the MRI machine.
• Image Creation: These signals are then processed to form detailed images of various body parts.

What MRI Can Image

MRI scans are highly versatile and can image a wide array of structures:

Why Use MRI?

Here are a few reasons why a medical professional might order an MRI:

• Detailed Imaging: It provides highly detailed images of soft tissues, making it invaluable for diagnosing conditions affecting these areas, such as injuries and tumors.
• Non-Invasive: MRI is a non-invasive procedure, and does not expose the patient to ionizing radiation, which is beneficial for long-term health and safety.
• Versatility: The technology can be used to image almost every part of the body, offering a comprehensive view.
• Contrast: MRI is excellent at distinguishing between different types of soft tissue, like ligaments and tendons, which are not as clear on other types of scans such as x-rays.

MRI vs Other Imaging Techniques