Magnetic resonance (eg, proton) imaging, spinal canal and contents, lumbar; with contrast material(s)
CPT4 code
Name of the Procedure:
Magnetic Resonance Imaging (MRI) of the Spinal Canal and Contents, Lumbar Region; with Contrast Material(s)
Summary
This procedure utilizes magnetic resonance imaging (MRI) technology to create detailed images of the lumbar spinal canal and its contents. The use of contrast materials helps enhance the clarity of the images, allowing for better visualization of structures and potential abnormalities.
Purpose
The procedure is used to diagnose and evaluate conditions affecting the lumbar spinal canal, such as herniated discs, spinal stenosis, tumors, infections, or inflammatory diseases. The primary goal is to obtain high-resolution images to assist in accurate diagnosis and guide appropriate treatment plans.
Indications
- Persistent lower back pain
- Sciatica or leg pain
- Suspected lumbar spinal stenosis
- Previous inconclusive imaging results
- Symptoms indicative of spinal infections or tumors
- Pre-surgical evaluation and planning
Preparation
- Patients may be required to fast for a few hours before the procedure.
- Metal objects and electronics must be removed to avoid interference with the MRI.
- Pre-procedure screening for allergies to contrast materials and assessment of kidney function.
- Informing the medical team of any implants or devices.
Procedure Description
- The patient lies on an MRI examination table.
- An intravenous (IV) line is inserted to administer the contrast material.
- The patient is positioned within the MRI machine, and instructions on remaining still are provided.
- Initial images are taken without contrast.
- The contrast material is injected, and additional images are captured.
- The process is monitored by a radiologist and MRI technologist.
Duration
The procedure typically takes between 30 to 60 minutes, depending on the complexity and number of images required.
Setting
The procedure is performed in the radiology department of a hospital or an outpatient imaging center equipped with MRI technology.
Personnel
- Radiologist
- MRI Technologist
- Nursing staff (to assist with IV insertion and patient comfort)
Risks and Complications
- Allergic reaction to the contrast material (rare)
- Discomfort or pain from IV insertion
- Claustrophobia or anxiety related to the enclosed MRI space
- Nephrogenic systemic fibrosis (extremely rare and primarily in patients with severe kidney issues)
Benefits
- Non-invasive and highly detailed imaging
- Improved diagnostic accuracy for lumbar spinal issues
- Enhanced visualization with contrast material
- Guidance for effective treatment planning
Recovery
- Most patients can resume normal activities immediately following the procedure.
- Drinking plenty of fluids to help flush out the contrast material.
- Follow-up appointments to discuss MRI results with the healthcare provider.
Alternatives
- Computed Tomography (CT) Scan: Faster and less expensive but involves radiation and may not provide as detailed images.
- X-rays: Useful for bone abnormalities but limited in soft tissue visualization.
- Ultrasound: Non-invasive but not suitable for imaging deep spinal structures.
Patient Experience
During the procedure, the patient may hear loud knocking or tapping sounds from the MRI machine and may be given earplugs or headphones for comfort. After contrast injection, a mild cooling sensation might be felt. Post-procedure, patients usually do not experience significant discomfort and can go about their day as usual.