MRI Scan Guide
Overview
A lumbar spine MRI produces detailed images of the lower back, including the vertebrae, intervertebral discs, spinal cord, nerve roots, and surrounding soft tissues. It is the most accurate non-invasive method for diagnosing causes of lower back pain.
Lower back pain is one of the most common reasons patients seek MRI. The scan can identify disc herniations, spinal stenosis, nerve compression, fractures, infections, and tumours. It is also used to plan surgical interventions and monitor post-operative healing.
Lumbar spine MRI does not use radiation and is painless. No special preparation is needed, and patients can return to normal activities immediately after the scan.
The procedure
You lie face-up on the scanner table with your lower back centered over the imaging area. A surface coil may be placed over your abdomen to improve image quality. The table slides into the scanner, and multiple imaging sequences are acquired over approximately 30 to 45 minutes. Each sequence highlights different tissue types, allowing the radiologist to evaluate bones, discs, nerves, and soft tissues independently. You will hear rhythmic tapping sounds throughout the scan.
Diagnostic value
Preparation
No fasting is required for a lumbar spine MRI.
Wear comfortable clothing without metal fastenings (zips, buttons, belt buckles).
Remove all metal objects before entering the scan room.
Inform the radiographer about any spinal implants, screws, or hardware.
If you have significant pain lying flat, discuss positioning options with the clinic.
The spine is divided into three main regions: cervical (neck), thoracic (mid-back), and lumbar (lower back). Each region is scanned separately because the scan must be focused on the area of interest. Lumbar spine MRI covers approximately L1 through S1. If you have symptoms affecting multiple regions, your doctor may order more than one spine MRI.
Spine MRI findings alone do not determine whether surgery is needed. Many disc herniations and degenerative changes are present in people without symptoms. Surgery is typically considered when MRI findings correlate with specific symptoms (such as nerve compression causing leg weakness) and conservative treatments have not provided relief. Your doctor will interpret your MRI results in the context of your symptoms and clinical examination.
Understanding your results
Every Mira scan comes with two reports. A medical report from a radiologist for your doctor, and a miraclarity report for you. The miraclarity report explains your spine (lumbar) MRI findings in straightforward language with visual guides, severity indicators, and recommended next steps.
No jargon. No waiting for another appointment just to understand what your scan found. miraclarity is included free with every scan.
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Yes. MRI is the best imaging method for detecting disc herniations, bulges, and nerve compression. It clearly shows the relationship between discs and nerve roots.
A typical lumbar spine MRI takes 30 to 45 minutes.
Lumbar MRI evaluates the lower back. Cervical MRI evaluates the neck. Your symptoms determine which region should be scanned. Lower back pain and leg symptoms suggest lumbar. Neck pain and arm symptoms suggest cervical.
Yes. Sciatica is typically caused by nerve root compression in the lumbar spine, often from a disc herniation. MRI can identify the exact location and cause of the compression.
A knee MRI uses magnetic resonance imaging to produce detailed cross-sectional images of the knee joint. Unlike X-rays, which show only bones, MRI reveals soft tissues including ligaments, cartilage, tendons, and the meniscus. This makes it the primary diagnostic tool for knee injuries and conditions.
A brain MRI produces highly detailed images of the brain, brainstem, and surrounding structures. It is the preferred imaging method for evaluating neurological symptoms because it provides superior soft tissue contrast compared to CT and does not use ionizing radiation.
A shoulder MRI provides highly detailed images of the rotator cuff, labrum, cartilage, tendons, ligaments, and bones of the shoulder joint. It is the most reliable non-invasive method for diagnosing shoulder injuries.
A hip MRI produces detailed images of the hip joint, including the femoral head, acetabulum, labrum, cartilage, tendons, muscles, and surrounding soft tissues. It is the most comprehensive imaging method for evaluating hip pathology.
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