MRI for Spinal Cord Compression

Spinal cord compression happens when something presses on the spinal cord or the nerve roots at the end of the cord (cauda equina). It can cause weakness, numbness and loss of bladder or bowel control, and it is an emergency. MRI of the spine is the best test to show the cause, such as a disc, tumour, infection or fracture, so treatment can be started quickly.

Warning Signs That Need an Emergency MRI

• New weakness in the legs or arms
• Numbness, especially around the groin and buttocks (saddle area)
• Difficulty passing urine, leaking urine or losing control of stool
• Back pain with fever or cancer history
• Unsteady walking or clumsy hands

Go to a hospital emergency at once. Delay can cause permanent paralysis. See MRI for sciatica and slipped disc.

What MRI Shows

MRI shows the spinal cord, the covering of the cord, nerve roots, discs, bones and soft tissues. It shows how severe the compression is, whether the cord is swollen or damaged, and the cause. Contrast is given in many cases, especially for suspected tumour or infection. See MRI spine scan and MRI with contrast.

CauseMRI findingLarge disc herniationDisc pressing on cord or nerve rootsSpine tumour or spread from cancerMass or collapsed vertebraSpinal infection (TB, abscess)Fluid, abscess and disc and bone damageFracture after injuryBone fragments and cord swellingNarrowing of the canal (stenosis)Compressed cord or nerves

Speed Is Important

Outcomes are better when pressure is relieved early. In emergencies, MRI of the whole spine may be done in 30 to 45 minutes, and the spine surgeon, neurologist or oncologist decides on surgery, radiotherapy, steroids or antibiotics. If MRI is not possible, CT myelography is an alternative. See CT spine scan.

Safety and Practical Points

Tell the staff about pacemakers and metal. Lying flat may be painful, so pain relief is given first. Keep still to avoid blurred images. A family member should stay informed and carry previous reports.

Treatment Overview

• Disc: surgery to remove pressure, often urgent with cauda equina signs
• Tumour or spread: steroids, radiotherapy, surgery and treatment of the cancer
• Infection: antibiotics, TB treatment and sometimes surgery
• Fracture: stabilisation and surgery

A Practical Example

Prakash, 55, has back pain for two weeks and now cannot pass urine easily and has numb buttocks. An emergency MRI shows a large lumbar disc pressing on the nerves. Surgery the same day relieves the pressure, and his bladder control returns over weeks. In another patient with cancer, MRI shows a vertebral deposit pressing on the cord, and radiotherapy is started urgently.

After the Scan and Next Steps

After treatment, rehabilitation with physiotherapy and bladder and bowel training helps recovery. Regular follow-up MRI may be needed for tumours and infections. Take medicines as prescribed, avoid heavy lifting at first and watch for any new weakness or numbness.

Questions to Ask Your Doctor

• What is pressing on my spinal cord or nerves?
• Do I need urgent surgery, radiotherapy or antibiotics?
• What recovery can I expect?
• Which rehabilitation will help?

Common Mistakes to Avoid

• Waiting at home with leg weakness or bladder trouble.
• Taking only painkillers for back pain with red flags.
• Moving a person with a suspected spine injury.

Booking, Timing and Report

Book a slot of about 45 to 60 minutes, and arrive 15 minutes early for the safety form. Carry your doctor's prescription, implant cards and old scans. Reports are usually ready within 24 to 48 hours, and you can request images on a CD or digital link for your specialist.

Key Facts at a Glance

• Leg weakness, saddle numbness or bladder trouble need emergency care
• MRI shows the cause and the severity
• Early treatment improves recovery
• Rehabilitation is part of care

Frequently Asked Questions

What is cauda equina syndrome?

Pressure on nerves at the lower end of the spinal cord, causing bladder and bowel problems.

Is spinal cord compression an emergency?

Yes.

Why is MRI the best test?

It shows the cord, nerves and cause clearly.

Is contrast needed?

Often.

Can CT be used?

If MRI is not possible.

How long does it take?

About 30 to 45 minutes.

Can weakness recover?

Often, if treated early.

Is surgery always needed?

No; it depends on the cause.

When is the report ready?

Immediately in emergencies.

Book Your Test at Ganesh Diagnostic

Ganesh Diagnostic & Imaging Centre in Rohini, Delhi offers this test with trained radiology staff and clear reports. You can book an appointment online, check our branches across Delhi NCR, contact us for current rates, or explore all our services. Reports can be downloaded online through our patient portal, so you do not need to make a second trip just to collect them.

This article is for general information only. It does not replace advice from your doctor. Always follow your doctor's instructions for your test.

Related Reading

• MRI Brain for Memory Loss and Dementia
• MRI for Bone Infection (Osteomyelitis)
• MRI Brain for Epilepsy and Seizures
• MRI for Rectal Cancer Staging
• MRI for Multiple Sclerosis: What the Scan Shows
• MRI Abdomen Scan: Uses and Preparation
• MRI Breast Scan: When Is It Recommended?
• MR Angiography of Brain and Neck Vessels