Understanding Carpal Tunnel Syndrome
Carpal tunnel syndrome (CTS) is a condition caused by compression of the median nerve as it travels through the wrist. This can lead to tingling, numbness, and pain in the hand and fingers.
Diagnosing CTS
Doctors use various tests to diagnose CTS, including:
- Physical exam to check for numbness, weakness, and atrophy
- Nerve conduction study to measure how fast signals travel through nerves
- Electromyography to assess electrical activity in muscles
Using MRI for CTS
MRI can provide images of the carpal tunnel and median nerve, helping compare normal vs affected anatomy. This can show:
- Carpal tunnel narrowing
- Median nerve thickness - swelling can indicate irritation
- Other wrist anatomy - bones, tendons, blood vessels
Interpreting the MRI Results
Radiologists analyze the MRI images to spot abnormalities indicating CTS such as...
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What is carpal tunnel syndrome?
Carpal tunnel syndrome (CTS) occurs when the median nerve, which runs from the forearm into the palm, becomes pressed or squeezed at the wrist. This causes tingling, numbness, and pain in the hand and fingers.
How does MRI help diagnose carpal tunnel syndrome?
MRI provides images allowing detailed comparison between a normal wrist vs one affected by CTS. This visual information highlights abnormalities like nerve swelling and carpal tunnel narrowing.
What are the benefits of an MRI over other tests?
Unlike nerve conduction studies, MRI visualizes anatomical structures directly. This allows assessment of potential causes of median nerve compression, not just nerve function. MRI is painless too.
When should I get a wrist MRI for possible CTS?
If you have persistent wrist pain, tingling, and numbness in your fingers, ask your doctor whether an MRI would be appropriate to help diagnose the cause. They may recommend it before considering surgery.
Disclaimer: This article is for informational purposes only and does not constitute medical advice. Always consult with a healthcare professional before starting any new treatment regimen.
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