How is Spine MRI Done?

Spine MRI (Magnetic Resonance Imaging) is performed using a combination of radio waves, a strong magnetic field, and a computer to create detailed images of the spine and surrounding tissues without using radiation.

Here's a breakdown of the process:

1. Preparation

• Medical History and Screening: Before the MRI, you'll typically be asked about your medical history, including any allergies, implanted medical devices (pacemakers, defibrillators, etc.), or metallic objects in your body. These can interfere with the MRI.
• Clothing and Jewelry: You'll likely be asked to change into a gown and remove any jewelry, watches, or other metallic items.
• Contrast Injection (Optional): In some cases, a contrast dye (usually containing gadolinium) is injected intravenously to enhance the visibility of certain tissues or structures. The decision to use contrast depends on the specific reason for the MRI.
• Positioning: You will be positioned on a motorized table that slides into the MRI machine. The technologist will help you get comfortable and may use pillows or supports to ensure you remain still throughout the procedure.

2. Inside the MRI Machine

• The MRI Scanner: The MRI machine is a large, cylindrical tube surrounded by powerful magnets.
• Radio Waves and Magnetic Field: Once you are inside the scanner, the machine emits radio waves that interact with the body's magnetic field. This process generates signals from the tissues in your spine.
• Image Acquisition: The signals are detected by the MRI machine and processed by a computer to create cross-sectional images of your spine. These images can be viewed in multiple planes (axial, sagittal, coronal) to provide a comprehensive assessment.
• Noise: The MRI machine makes loud banging and humming noises during operation. You will usually be given earplugs or headphones to minimize the noise.
• Communication: You can typically communicate with the MRI technologist through an intercom system throughout the procedure.

3. During the Scan

• Remaining Still: It's crucial to remain as still as possible during the scan to avoid blurring the images. The technologist may give you specific breathing instructions.
• Scan Duration: A spine MRI typically takes between 30 to 60 minutes, depending on the specific areas being scanned and whether contrast is used.

4. After the Scan

• Removal from the Scanner: Once the scan is complete, the table will slide out of the machine.
• Review by Radiologist: The images are reviewed by a radiologist, a doctor specializing in interpreting medical images. The radiologist will then prepare a report for your referring physician.
• Normal Activities: Unless you received sedation, you can usually resume your normal activities immediately after the MRI.
• Results: Your referring physician will discuss the results of the MRI with you during a follow-up appointment.

Summary Table