Lumbar spinal stenosis imaging
Lumbar spinal stenosis is a narrowing of the spinal canal that compresses the nerve roots and can cause leg pain, cramping, or weakness with walking — typically relieved by sitting or bending forward. MRI is the primary study used to measure the degree of stenosis and plan treatment.
Affected anatomy
- Lumbar Spinal Canal
- Cauda Equina
- Lumbar Facet Joints
- Ligamentum Flavum
Also known as
- spinal canal narrowing
- neurogenic claudication
- central stenosis
Imaging used for lumbar spinal stenosis
MRI
MRI shows the degree of canal narrowing, facet hypertrophy, ligamentum flavum thickening, and nerve root compression — all without radiation.
CT
CT provides excellent bony detail of the facets and canal dimensions. Often used when MRI is contraindicated or for surgical planning.
X-Ray
X-ray evaluates alignment, disc space height, and spondylolisthesis — common contributors to stenosis — but does not show the spinal canal directly.
Relevant medical specialties
- Radiology
- Orthopedic Surgery
- Neurosurgery
- Physical Medicine & Rehabilitation
Schedule imaging at Precise
Precise Imaging operates outpatient MRI, CT, X-ray, ultrasound, and arthrogram centers across California. Once your physician places an order, scheduling is quick. Bring your prescription, photo ID, and insurance card.
Related symptom guide
Our symptom guides explain when imaging is needed, which scan to expect, and what the results mean — in plain language.
Get imaging near you
Precise Imaging has locations across California with same-day scheduling, board-certified radiologist reads, and transparent pricing.