A lumbo‑sacral MRI scan is a non‑invasive imaging test using magnetic fields and radio waves to produce detailed pictures of the lumbar spine and sacrum, including vertebrae, discs, nerves and soft tissues. It helps diagnose causes of lower back pain, sciatica, disc herniation, spinal stenosis, infection or tumors. It takes about 20–45 minutes, may use contrast, and involves no ionizing radiation.

An MRI of the lumbar spine provides detailed images of bones, intervertebral discs, spinal canal, nerve roots and surrounding soft tissues. It detects disc degeneration or herniation, spinal canal or foraminal narrowing (stenosis), nerve compression, inflammation, infection, tumors, fractures and post‑operative changes. MRI also assesses bone marrow signal and ligament abnormalities, helping guide diagnosis and treatment of low back pain and sciatica.

Prices for an MRI of the lumbosacral spine vary widely by country and provider. Public systems often cover it; private fees commonly range: UK about £200–£700, India roughly ₹2,000–₹10,000, and the USA typically $400–$3,500 (uninsured bills can be higher). Costs depend on contrast use, facility type, urgency and your insurance—check local providers for exact pricing.

A lumbosacral spine MRI typically takes about 20–45 minutes for the scanning portion. Including patient check-in, positioning and any contrast injection, total appointment time is often 30–60 minutes. Longer scans may be needed for detailed sequences, claustrophobic patients, or combined exams. Your radiology team can give a precise estimate based on the protocol planned.

A lumbar MRI is generally painless and noninvasive. You may feel mild discomfort from lying still on a firm table, noise from the scanner, or claustrophobia in the bore. If IV contrast is used, you might notice brief stinging at the injection site or rare allergic reactions. Tell staff about implants, allergies, or anxiety—earplugs, cushions, or mild sedation are usually available.

Wear comfortable, loose-fitting, metal-free clothing for a lumbar-spine MRI. Avoid garments with zippers, buttons, hooks, underwire bras or metallic fasteners; remove jewelry, piercings, watches, and hairpins. You may be asked to change into a hospital gown. Don’t wear makeup with metallic shimmer. Bring implant or device cards and tell staff about implants, pacemakers, or pregnancy beforehand.