Magnetic resonance angiography, neck; with contrast material(s)
CPT4 code
Name of the Procedure:
Magnetic Resonance Angiography (MRA) of the Neck with Contrast Material(s)
Summary
Magnetic Resonance Angiography (MRA) of the neck with contrast is a non-invasive imaging technique used to visualize blood vessels in the neck. It combines the use of magnetic fields and contrast dyes to provide detailed images of blood flow and vascular structures.
Purpose
This procedure is utilized to diagnose and evaluate conditions affecting blood vessels in the neck, such as blockages, aneurysms, and arteriovenous malformations. The goal is to assist healthcare providers in accurately identifying vascular abnormalities and planning appropriate treatments.
Indications
- Symptoms like dizziness, headaches, or vision changes that may suggest vascular issues.
- History of stroke or transient ischemic attacks (TIAs).
- Suspected carotid artery disease.
- Planning for surgical or interventional procedures.
- Monitoring known vascular conditions.
Preparation
- Patients may need to fast for a few hours before the procedure.
- Inform the healthcare provider about any allergies, especially to contrast material, and current medications.
- Remove any metallic objects or jewelry.
- Undergo preliminary diagnostic tests like blood tests to assess overall health.
Procedure Description
- The patient lies on an MRI table that slides into a large, tunnel-like machine.
- An intravenous (IV) line is inserted for the administration of the contrast dye.
- The technologist will operate the MRI machine from an adjacent room, communicating with the patient via an intercom.
- A series of magnetic field pulses are sent through the body to generate detailed images of the neck's blood vessels.
- During the scan, the IV contrast dye is injected to enhance the visibility of blood vessels.
- The MRI machine captures images in quick sequences, which a radiologist will later analyze.
No anesthesia or sedation is typically required unless the patient has severe anxiety or claustrophobia.
Duration
The procedure generally takes between 30 to 45 minutes.
Setting
The procedure is performed in a hospital's radiology department or an outpatient imaging clinic.
Personnel
- Radiologist: A doctor specialized in interpreting medical images.
- MRI Technologist: A trained technician who operates the MRI machine.
- Nursing staff: May assist with IV placement and patient care during the procedure.
Risks and Complications
- Allergic reactions to the contrast dye (rare).
- Claustrophobia or discomfort while lying still.
- Gadolinium-based contrast agents can pose a risk to patients with kidney problems.
- Potential for false-positive or false-negative results, requiring further tests.
Benefits
- Non-invasive and doesn’t involve radiation exposure.
- Provides high-resolution images for accurate diagnosis.
- Helps in planning effective treatment strategies.
- Immediate enhancement of blood vessel visibility.
Recovery
- Patients can usually resume normal activities immediately after the procedure.
- Drink plenty of fluids to help flush out the contrast material.
- Follow-up appointments may be scheduled to discuss the results with a healthcare provider.
Alternatives
- CT Angiography (CTA): Uses X-rays and contrast; quicker but involves radiation.
- Doppler Ultrasound: Non-invasive but less detailed than MRA.
- Conventional Angiography: Invasive, with detailed images, but higher risk.
Patient Experience
- Most patients feel a warm sensation when the contrast dye is injected.
- Lying still in the MRI machine can be uncomfortable, especially for those with claustrophobia.
- The machine makes loud noises, but earplugs or headphones are provided for comfort.
- Minimal discomfort and timely results offer peace of mind and clarity on health status.