MRI of Lumbar - Spinal Stenosis
Detailed mri of lumbar. No radiation exposure.
An MRI uses magnets and radio waves to create detailed pictures of your spine. For lumbar spinal stenosis, it shows narrowing, disc issues, and nerve compression. The radiologist's report describes where and how severe the narrowing is, but your doctor will match it to your symptoms.
Key facts at a glance
- Modality
- mri
- Body part
- spine · lumbar
- Ionizing radiation
- false
- Radiation dose
- 0
- Duration (min)
- 45
- Pregnancy safe
- true
- Pediatric safe
- false
- Breastfeeding safe
- true
- Claustrophobia risk
- high
- Metal implant safe
- conditional
- Sedation
- none
- LOINC
- 24556-9
- SNOMED
- 241646009
- Result turnaround
- 24-48h
- Availability
- routine
- Setting
- outpatient
- Cost tier
- high
What is an MRI?
MRI stands for magnetic resonance imaging. It uses strong magnets and radio waves to create detailed pictures of the inside of your body. Unlike X-rays, it shows soft tissues clearly.
Why MRI for Lumbar Spinal Stenosis?
Lumbar spinal stenosis is a narrowing of the spinal canal in the lower back. MRI is the best test to see this narrowing and how it affects nerves. It shows bones, discs, and soft tissue in high detail.
What the MRI Shows
How to Read the MRI Results
A radiologist will examine the MRI to see where the narrowing is. They look for discs pushing out, thickened ligaments, or bone growth. These can press on nerves and cause pain or numbness.
Understanding Your Report
Your report may use terms like 'central canal stenosis' or 'foraminal stenosis'. These simply tell where the narrowing happens. 'Central' means in the middle, 'foraminal' is at the nerve exit points.
Limitations of MRI
MRI shows structure, not function. Some people have narrowing without symptoms. Others have severe symptoms with mild narrowing. Your doctor will combine MRI results with your symptoms and exams.
In summary, an MRI for lumbar spinal stenosis gives a detailed picture of your spine. Understanding the report helps you discuss treatment options with your doctor.
How to read the report
- Results reviewed by radiologist.
What Is This Procedure?
This mri evaluates lumbar, specifically lumbar vertebrae. No radiation exposure.
What Does It Show?
Detailed images of lumbar vertebrae and intervertebral discs and spinal canal and nerve roots. Part of the musculoskeletal system.
Common Uses
This exam is commonly used to detect fractures, evaluate joint problems, assess soft tissue injuries, and diagnose arthritis.
What to Expect
The procedure takes approximately 45 minutes. Inform your doctor if you experience claustrophobia.
Severe pain at procedure site
urgentWorsening severe pain with fever or other symptoms. Go to urgent care or ER.
Mild symptoms after procedure
promptMild discomfort or symptoms that don't improve. Contact your doctor.
Frequently asked questions
Is an MRI safe?
How long does an MRI take?
Do I need contrast dye for this MRI?
What if my MRI shows stenosis but I have no symptoms?
Sources
- 1
- 2
- 3
Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 9, 2026. · Read our editorial policy