Magnetic Resonance Imaging (MRI)

Magnetic Resonance Imaging, commonly known as MRI, is a powerful medical imaging technique that uses strong magnets, radio waves, and advanced computer technology to create highly detailed images of the inside of the human body. MRI is a versatile tool with various applications, such as detecting brain bleeding, changes in the brain (e.g., strokes), spinal problems like herniated discs, and injuries within the body, such as torn ligaments. Before undergoing an MRI, patients need to remove all metal objects and inform the MRI technologist about any metal devices or implants in their body, as these can be unsafe in the magnetic field.
During an MRI, patients lie on a table just outside the scanner. MRI machines can be noisy, so patients often wear earplugs or headphones. Technologists use equipment like pillows and straps to ensure the patient is in the correct position. The table then slides into the MRI scanner. There are closed and open MRI scanners, with open scanners being more suitable for claustrophobic patients. The technologist operates the scanner from the next room, and patients can communicate through a two-way speaker.
The MRI machine generates a strong magnetic field and sends harmless radio waves through the body. Once the radio waves are turned off, the machine picks up energy signals from the body to create detailed images. Patients must remain still during the scan to obtain clear images. In some cases, contrast dye may be used to enhance image quality.
After the MRI, patients can return to their normal activities. If they received contrast dye, the technologist might recommend drinking extra fluids to help eliminate the dye from the body. MRI is a valuable diagnostic tool that offers detailed insights into the human body while ensuring patient safety throughout the procedure.