A wrist MRI is a non-invasive imaging technique that uses magnetic fields and radio waves to generate detailed images of the wrist’s soft tissues and bones. It’s an essential tool for diagnosing a variety of wrist conditions, especially those involving the tendons, ligaments, cartilage, and nerves.

Why is it Performed?

A wrist MRI is typically performed when other imaging techniques, like X-rays, don’t provide enough information or when soft tissue injuries are suspected. It is particularly helpful in evaluating:

• Ligament tears or sprains (e.g., scapholunate ligament tears)
• Tendinitis and tendinopathy
• Carpal tunnel syndrome (by examining the median nerve)
• Fractures that may not be visible on X-ray, especially stress fractures or those involving the cartilage
• Arthritis (both osteoarthritis and inflammatory types like rheumatoid arthritis)
• Soft tissue masses (like ganglion cysts) or tumours.

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What are the benefits?

• Detailed soft tissue visualization: MRI provides high-resolution images that can depict tendons, ligaments, nerves, and cartilage, which X-rays cannot do effectively.
• Non-invasive: No need for surgical procedures or biopsies to diagnose soft tissue conditions.
• Accurate diagnosis: Helps pinpoint the exact cause of wrist pain or dysfunction, guiding appropriate treatment (such as surgery, physical therapy, or medication).
• No radiation exposure: Unlike X-rays or CT scans, MRI does not use ionizing radiation.

What are the limitations?

• Soft tissue bias: While MRI excels in soft tissue imaging, it may not be as effective for detecting bone fractures or certain bone conditions compared to X-rays.
• Artefacts: Movement during the scan or certain anatomical variations can cause image distortion or “artefacts,” which might require repeating the scan or adjusting the technique.
• Cost and time: MRIs are generally more expensive and time-consuming compared to other imaging modalities like X-rays or ultrasound​.

Source:

https://radiopaedia.org/articles/mri-of-the-wrist-an-approach

https://appliedradiology.com/articles/mri-of-the-wrist