A lumbosacral MRI gives detailed images of the lower spine (lumbar vertebrae and sacrum), intervertebral discs, spinal canal and nerve roots plus surrounding soft tissues. It detects disc herniation, degeneration, spinal stenosis, nerve compression, fractures, infections, tumors, inflammation and bone marrow changes, and guides non-surgical interventions while helping plan or monitor surgery.

Costs vary widely by country and facility. Typical ranges: India ₹2,000–10,000 (≈$25–125); United Kingdom: usually free on the NHS or £200–£500 privately; United States: roughly $400–3,500 for a lumbar/sacral MRI (higher for contrast or advanced imaging). Final price depends on location, use of contrast, facility type and insurance—always check locally.

A lumbosacral MRI scan itself usually takes about 20–45 minutes. Non‑contrast studies often finish in 15–30 minutes; adding contrast or extra imaging sequences can extend the scan to 30–60 minutes. Allow extra time for positioning, safety screening and paperwork—typically plan 30–75 minutes for the entire appointment. Claustrophobia, body habitus, or additional views may lengthen the visit.

Lumbar spine screening is evaluation to detect problems of the lower back such as degenerative changes, disc herniation, spinal stenosis, fractures or instability. It combines medical history, physical examination (posture, nerve tests, range of motion) and, when needed, imaging (X‑ray, MRI, CT) or nerve studies. Screening guides treatment and referrals and is usually targeted to symptoms and risk factors.

A lumbar MRI can reveal structural causes that compress or irritate nerves—herniated discs, spinal stenosis, foraminal narrowing, nerve‑root displacement, and signal changes—so it can suggest nerve injury. However, MRI shows anatomy and indirect signs, not nerve function. Electrophysiological tests (EMG/NCS) and clinical correlation are often needed to confirm actual functional nerve damage and its severity.

Be concerned if an MRI shows new or growing masses, bleeding, infection, spinal cord compression, or strokes; or if your symptoms are suddenly worse—weakness, numbness, vision or speech changes, severe unexplained pain, new seizures, or rapidly worsening headaches. Unexpected enhancing lesions or unexplained findings require specialist review. Contact your doctor promptly for interpretation; seek emergency care for sudden neurological deficits.